[4] Crowe assembled a roster dominated by players imported from England including Brian Godfrey, Mick Hoban, and Tony Betts who he had coached at Aston Villa; Peter Withe and Jimmy Kelly were both brought over on loan from Wolverhampton Wanderers F.C.

[8] On August 24, 1975, at Spartan Stadium in San Jose, California, the Timbers lost Soccer Bowl '75 to the Tampa Bay Rowdies 2–0.

[10] Portland's nickname of "Soccer City, USA" was coined by GM Don Paul during the team's 1975 season.

[1] A few days after the championship game, the NASL levied fines of $2,500 against Timbers GM Don Paul and head coach Crowe for recruiting violations.

[17] Although Hoban was born in England, he qualified as an American having earned a cap for the United States men's national soccer team in 1973.

[23] The Timbers finished the 1976 North American Soccer League season in fourth place of the Pacific Conference Western Division with eight wins and sixteen losses and not qualifying for the playoffs.

[29][30] The Timbers hosted friendlies against two English teams during the summer of 1977, defeating the Bristol Rovers 3 - 0 on June 1, 1977[31] and played to a 1–1 draw against Ipswich Town F.C.

[6][33] A week after the season, Tiler was fired and in late November 1977 was replaced by former Sheffield Wednesday player and Bristol Rovers manager Don Megson.

[43] The following week, Portland swept the Vancouver Whitecaps in the two-legged Conference Semifinals, winning the home leg 1-0[44] and the away game 2–1.

[47] Soon after the team was defeated in the playoffs by the Cosmos, a majority of the Timber players announced if they did not receive substantial increases in pay, they would not be returning to play in Portland.

[48] In November 1978, former National Football League tight end Kent Kramer who has been acting as the vice president of the Minnesota Kicks for the previous three seasons was hired as general manager.

[54] Portland finished the season with a record of eleven wins and nineteen losses, placed fourth in the Western Division of the National Conference.

[57] Louisiana-Pacific announced the remaining two years of GM Kramer's contract would be bought out and he would be replaced by Peter Warner, a Methodist pastor and administrator of referees for United States Soccer Federation.

GM Peter Warner named himself interim head coach and announced that assistant player-coach Jimmy Conway, in his third season with the team, would not be hired to replace Megson.

[6][66] In October, Portland announced that they would participate in the 1980–81 NASL Indoor season hosting home matches at the Memorial Coliseum with Crowe managing the team.

[72][73] In late February 1981 the Timbers released six players, including Mick Poole who had been the team's starting goalkeeper since the 1977 season.

[74] Keith MacRae who had played with the Philadelphia Fury during the 1978 season and serving as back up goalkeeper for Manchester City F.C.

[76] A month into the season, the Timbers sold franchise all-time leading scorer Clyde Best to the Toronto Blizzard and brought in Alistair 'Ally' Brown from West Bromwich Albion F.C.

for a friendly, losing to the English Football League First Division side 1–0 on an own goal by Timber player Glenn Myernick.

[79] The Timbers finished the season in third place of the Northwest Division with a record of seventeen wins and fifteen losses.

[6] The Timbers faced the San Diego Sockers the first round of the playoffs, winning the home match of the best of three series 2–1 on August 22, 1981.

[85] Portland finished the indoor season with a record of seven wins and eleven losses, second place in the Western Division of the Pacific Conference and did not make the playoffs.

[87] Keith MacRae was also released in favor of Bill Irwin who became a nationalized citizen to qualify as an American under the NASL roster rules.

[95] In September, local businessman James Horne agreed to a deal with Louisiana-Pacific to purchase the club pending league approval.