American Soccer League I
1967 ASL	1967-68 ASL	1969 ASL	1970 ASL	1971 ASL
Baltimore St. Gerard's Boston Tigers Hartford Kings Lowell Astros N.B. Hungarian Americans New York Inter Newark Falcons Newark Portuguese Newark Ukrainian Sitch Olympia Rochester Lancers Roma SC Ukrainian Nationals Washington Darts	Baltimore Flyers Boston Tigers Fall River Astros Hartford Kings New Brunswick Hungarians New York Inter Newark Portuguese Newark Ukrainian Sitch Patterson Roma SC Rochester Lancers Ukrainian Nationals Washington Britannica Washington Darts	Boston Astros New York Inter Newark Ukrainian Sitch Philadelphia Spartans Philadelphia Ukrainians Rochester Lancers Syracuse Scorpions Washington Darts	Boston Astros Newark Ukrainian Sitch New York Inter Philadelphia Nationals Philadelphia Spartans Philadelphia Ukrainians Syracuse Scorpions	Boston Astros New York Inter New York Greeks Philadelphia Spartans Syracuse Suns Virginia Capitol Cavaliers
1972 ASL	1973 ASL	1974 ASL	1975 ASL	1976 ASL
Baltimore Stars Boston Astros Chicago Americans Cincinnati Comets Cleveland Stars Delaware Wings Detroit Mustangs New York Greeks Northeast United New Jersey Schaefer Brewers Philadelphia Spartans Pittsburgh Canons St. Louis Frogs Syracuse Suns Washington Cavaliers	Baltimore Bays Boston Astros Cincinnati Comets Cleveland Stars Connecticut Wildcats Delaware Wings Detroit Mustangs Gary Tigers New Jersey Brewers New York Apollo Philadelphia Spartans Syracuse Suns	Boston Astros Cincinnati Comets Cleveland Cobras Connecticut Wildcats Delaware Wings Indiana Tigers New Jersey Brewers New York Apollo Rhode Island Oceaneers Syracuse Suns	Boston Astros Chicago Cats Cincinnati Comets Cleveland Cobras Connecticut Yankees New Jersey Brewers New York Apollo Pittsburgh Miners Rhode Island Oceaneers	Chicago Cats Cleveland Cobras Connecticut Yankees Los Angeles Skyhawks New Jersey Americans New York Apollo Golden Bay Buccaneers Rhode Island Oceaneers Sacramento Spirits Tacoma Tides Utah Golden Spikers
1977 ASL	1978 ASL	1979 ASL	1980 ASL	1981 ASL
California Sunshine Cleveland Cobras Connecticut Yankees Los Angeles Skyhawks New England Oceaneers New Jersey Americans New York Apollo Sacramento Spirits Santa Barbara Condors	California Sunshine Cleveland Cobras Connecticut Yankees Indianapolis Daredevils Los Angeles Skyhawks New Jersey Americans New York Apollo New York Eagles Sacramento Gold Southern California Lazers	California Sunshine Cleveland Cobras Columbus Magic Indianapolis Daredevils Las Vegas Seagulls Los Angeles Skyhawks New Jersey Americans New York Apollo New York Eagles Pennsylvania Stoners Sacramento Gold	California Sunshine Cleveland Cobras Columbus Magic Golden Gate Gales Miami Americans New York Eagles New York United Pennsylvania Stoners Phoenix Fire Sacramento Gold	Carolina Lightnin' Cleveland Cobras Detroit Express New England Sharks New York Eagles New York United Pennsylvania Stoners Rochester Flash
1982 ASL	1983 ASL
Carolina Lightnin' Detroit Express Georgia Generals Nashville Diamonds Oklahoma City Slickers Pennsylvania Stoners Rochester Flash	Carolina Lightnin' Dallas Americans Detroit Express Jacksonville Tea Men Oklahoma City Slickers Pennsylvania Stoners Rochester Flash
United Soccer Leauge
1984 USL	1985 USL
Buffalo Storm Charlotte Gold Dallas Americans Ft Lauderdale Sun Houston Dynamos Jacksonville Tea Men New York Nationals Rochester Flash Oklahoma City Stampede	Dallas Americans El Paso/Juarez Gamecocks South Florida Sun Tulsa Tornados
Independent
1984 Independent	1985 Independent	1986 Independent	1987 Independent
F.C. Seattle	Houston Dynamos New York Cosmos Tampa Bay Rowdies Tulsa Roughnecks	Houston Dynamos Orlando Lions Tampa Bay Rowdies	Orlando Lions
West Coast
1985 WACS	1986 WSA	1987 WSA	1988 WSA	1989 WSL
Edmonton Brick Men F.C. Portland F.C. Seattle San Jose Earthquakes Victoria Riptides	Edmonton Brick Men Hollywood Kickers Los Angeles Heat F.C. Portland F.C. Seattle San Diego Nomads San Jose Earthquakes	California Kickers Los Angeles Heat F.C. Portland F.C. Seattle San Diego Nomads San Jose Earthquakes	California Kickers Los Angeles Heat F.C. Portland San Diego Nomads San Jose Earthquakes Seattle Storm	Arizona Condors California Kickers Los Angeles Heat Portland Timbers Real Santa Barbara Sacramento Senators San Diego Nomads San Francisco Bay Blackhawks Seattle Storm
American Soccer League II
1988 ASL	1989 ASL	1990 APSL East (ASL)	1990 APSL West (WSA)
Albany Capitals Boston Bolts Ft. Lauderdale Strikers Maryland Bays Miami Sharks New Jersey Eagles Orlando Lions Tampa Bay Rowdies Washington Diplomats Washington Stars	Albany Capitals Boston Bolts Ft. Lauderdale Strikers Maryland Bays Miami Sharks New Jersey Eagles Orlando Lions Tampa Bay Rowdies Washington Diplomats Washington Stars	Albany Capitals Boston Bolts Ft. Lauderdale Strikers Maryland Bays Miami Freedom New Jersey Eagles Orlando Lions Penn-Jersey Spirit Tampa Bay Rowdies Washington Diplomats Washington Stars	Arizona Condors California Emperors Colorado Foxes Los Angeles Heat New Mexico Chiles Portland Timbers Real Santa Barbara Salt Lake Sting San Diego Nomads San Francisco Bay Blackhawks Seattle Storm
American Professional Soccer League
1991 APSL	1992 APSL	1993 APSL	1994 APSL
American Conference Albany Capitals Ft. Lauderdale Strikers Miami Freedom Penn-Jersey Spirit Tampa Bay Rowdies Western Conference Maryland Bays Colorado Foxes San Francisco Bay Blackhawks	Colorado Foxes Ft. Lauderdale Strikers Miami Freedom San Francisco Bay Blackhawks Tampa Bay Rowdies	Colorado Foxes Ft. Lauderdale Strikers Los Angeles Salsa Montreal Impact Tampa Bay Rowdies Toronto Blizzard Vancouver 86ers	Colorado Foxes Ft. Lauderdale Strikers London City Los Angeles Salsa Montreal Impact Seattle Sounders Toronto Rockets Vancouver 86ers
Canadian Soccer League
1983 CPSL	1987 CSL	1988 CSL	1989 CSL	1990 CSL
Calgary Mustangs Edmonton Eagles Hamilton Steelers Inter-Montreal Mississauga Croatia Toronto Nationals	Calgary Kickers Edmonton Brick Men Hamilton Steelers North York Rockets Ottawa Pioneers Toronto Blizzard Vancouver 86ers Winnipeg Fury	Calgary Kickers Edmonton Brick Men Hamilton Steelers Montreal Supra North York Rockets Ottawa Intrepid Toronto Blizzard Vancouver 86ers Winnipeg Fury	Eastern Division Hamilton Steelers Montreal Supra North York Rockets Ottawa Intrepid Toronto Blizzard Western Division Calgary Strikers Edmonton Brick Men Vancouver 86ers Victoria Vistas Winnipeg Fury	Eastern Division Hamilton Steelers Kitchener Spirit London Lasers Montreal Supra North York Rockets Ottawa Intrepid Toronto Blizzard Western Division Edmonton Brick Men Vancouver 86ers Victoria Vistas Winnipeg Fury
1991 CSL	1992 CSL	1993 CNSL
Hamilton Steelers Kitchener Kickers Montreal Supra North York Rockets Nova Scotia Clippers Toronto Blizzard Vancouver 86ers Winnipeg Fury	London Lasers Montreal Supra North York Rockets Toronto Blizzard Vancouver 86ers Winnipeg Fury	Brampton London City Richmond Hill St. Catherine's Toronto Croatia Toronto Italia Toronto Jets Toronto Rockets Windsor Wheels Winnipeg Fury Woodbridge
A-League
1995 A-League	1996 A-League	1997 A-League	1998 A-League	1999 A-League
Atlanta Ruckus Colorado Foxes Montreal Impact New York Centaurs Seattle Sounders Vancouver 86ers	Atlanta Ruckus Colorado Foxes Montreal Impact New York Fever Rochester Rhinos Seattle Sounders Vancouver 86ers	Eastern Conference Carolina Dynamo Charleston Battery Connecticut Wolves Hershey Wildcats Jacksonville Cyclones Long Island Rough Riders Montreal Impact Raleigh Flyers Richmond Kickers Rochester Rhinos Toronto Lynx Worcester Wildfire Western Conference Atlanta Ruckus California Jaguars Colorado Foxes El Paso Patriots Milwaukee Rampage Minnesota Thunder Nashville Metros New Orleans Riverboat Gamblers Orange County Zodiac Orlando Sundogs Seattle Sounders Vancouver 86ers	Eastern Conference Atlanta Ruckus Charleston Battery Connecticut Wolves Hampton Roads Hershey Wildcats Jacksonville Cyclones Long Island Rough Riders Montreal Impact Raleigh Flyers Richmond Kickers Rochester Rhinos Staten Island Vipers Toronto Lynx Worcester Wildfire Western Conference Albuquerque Geckos California Jaguars Cincinnati Riverhawks El Paso Patriots Milwaukee Rampage Minnesota Thunder Nashville Metros New Orleans Riverboat Gamblers Orange County Zodiac San Diego Flash San Francisco Seals Seattle Sounders US Pro-40 Select Vancouver 86ers	Eastern Conference Atlanta Silverbacks Boston Bulldogs Charleston Battery Hampton Roads Hershey Wildcats Jacksonville Cyclones Lehigh Valley Steam Long Island Rough Riders Maryland Mania Montreal Impact Pittsburgh Riverhounds Raleigh Capital Express Richmond Kickers Rochester Rhinos Staten Island Vipers Toronto Lynx Western Conference Cincinnati Riverhawks El Paso Patriots Indiana Blast Milwaukee Rampage Minnesota Thunder New Orleans Storm Orange County Zodiac Sacramento Geckos San Diego Flash San Francisco Bay Seals Seattle Sounders Tennessee Rhythm US Pro-40 Select Vancouver 86ers
2000 A-League
Eastern Conference Atlanta Silverbacks Boston Bulldogs Charleston Battery Connecticut Wolves Hampton Roads Mariners Hershey Wildcats Long Island Rough Riders Montreal Impact Pittsburgh Riverhounds Raleigh Capital Express Richmond Kickers Rochester Rhinos Toronto Lynx Western Conference Bay Area Seals Cincinnati Riverhawks El Paso Patriots Indiana Blast Milwaukee Rampage Minnesota Thunder Orange County Waves San Diego Flash Seattle Sounders Tennessee Rhythm US Pro-40 Select Vancouver 86ers
National Teams
Canadian National Team	USA National Team

Methodology: I used a number of sources to identify a player's numbers and his statistics.
For statistics, I used the following resources.
1. Media Guides
2. Http://homepages.sover.net/~spectrum/
3. Http://a-leaguearchive.tripod.com/The data here has playoffs and regular season combined. When I have the data available from other sources I include only the regular season.
4. The MLS stats come from Http://www.mlssoccer.com/players/
5. Some APSL data comes from the APSL 1993 Media Guide

For players numbers I used the following resources in descending order of priority.
1. Home team's programs-My assumption is the home team is pretty reliable on it's own roster. Hopefully that's not a false assumption.
2. Media guide-I used these mainly for players who were on the roster, but didn't make it into a game. They are not that reliable for general numbers. Media guides were put out before the season. As players got cut, players would switch to the cut player's number.
3. Road programs-Road programs are prone to misspellings and number errors.
4. Photographs-This is a chicken and egg problem. You need to know the number to identify the player. You also need to know the jersey style to accurately identify the year. Over time you recognize both and can be reasonably accurate.

Sometimes a player wore 2 different numbers in a year, such as Mario Garcia in 1977. In that case, I separate the numbers with a comma, e.g. "9,10." It was not uncommon for a player to really have 2 numbers in a year. However, my sense is most of the times it is a bookkeeping error and not a real number change. One of the two numbers is right.

American Soccer League Players