Dave Gill trades
| Toronto Maple Leafs acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Frank Nighbor | January 31, 1930 | Danny Cox |  |
| cash | ||||
| Boston Bruins acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Harry Connor | January 30, 1930 | Bill Hutton | |
| Boston Bruins acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| cash | December 21, 1929 | Art Gagne | |
| Montreal Maroons acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | George Boucher | February 14, 1929 | Joe Lamb | |
| Montreal Maroons acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| cash | November 13, 1928 | loan of Fred Elliott for 1928-29 season | |
| Boston Bruins acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| Cy Denneny | October 25, 1928 | cash | |
| New York Americans acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Harry Punch Broadbent | October 15, 1928 | cash | |
| Toronto Maple Leafs acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| Ed Gorman | October 26, 1927 | cash | |
| Montreal Maroons acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| Hooley Smith | October 7, 1927 | Harry Punch Broadbent | |
| $22.5K cash | ||||
| Boston Bruins acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| cash | January 18, 1927 | Stan Jackson | |
| Toronto St. Patricks acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | cash | August 1, 1926 | Jack Adams | |
| Comment: Exact date unknown | ||||