[2] National Baseball Hall of Fame and Museum members Harry Heilmann and Dave Bancroft played for the Colts.

[7] The Northwestern League teams, including Portland, started attracting gamblers who made wagers on the games at local tobacco stores.

[8] In August 1909, the Colts traded Bill Chenault, Phil Cooney and Tom Murray to the Pacific Coast League (PCL) Portland Beavers in exchange for Charlie Armbruster and Dick Breen.

[12] Despite giving the Northwestern League franchise up in 1910, William W. McCredie looked to return a second team to Portland for the 1911 season.

The reason for this rule was because McCredie dumped all of his players from the 1909 season, even adding some to his PCL team for discounted prices.

[16] At the end of the 1912 Northwestern League season the Colts played an exhibition game against the Portland Beavers at Vaughn Street Park.

[17] Colts owner William W. McCredie requested an exhibition game be played against the Negro league Chicago American Giants in 1913.

[19] During the 1914 mid-season, McCredie sold the Colts to timber mogul Quinn Farr who announced his intention of relocation the team to Ballard, Washington.

The reason for the sale of the team, McCredie claimed, was due to the fact Portland's franchise was going to be revoked for the 1915 season because opponents travel expenses to the city were too high.