Frank Fredrickson trades
| Boston Bruins acquire | Date | Pittsburgh Pirates acquire | ||
|---|---|---|---|---|
 | Mickey MacKay | December 21, 1928 | Frank Fredrickson |  |
| $12K cash | ||||
| Detroit Cougars acquire | Date | Boston Bruins acquire | ||
|---|---|---|---|---|
 | Archie Briden | January 7, 1927 | Frank Fredrickson | |
| Duke Keats | Harry Meeking | |||