| Position: | Left wing |
| Shoots: | Left |
| Height Ft: | 5 |
| Height In: | 11 |
| Weight Lb: | 170 |
| Birth Date: | October 25, 1910 |
| Birth Place: | Campbellford, Ontario, Canada |
| Death Place: | Ottawa, Ontario, Canada |
| Career Start: | 1933 |
| Career End: | 1940 |
Gerald Edward "River" Shannon (October 25, 1910 – May 6, 1983) was a Canadian ice hockey left winger who played five seasons in the National Hockey League for the Ottawa Senators, St. Louis Eagles, Boston Bruins and Montreal Maroons between 1933 and 1938. Prior to turning professional he spent several years playing amateur senior hockey, and finished his career with three seasons in the minor International American Hockey League, retiring in 1940. He was born in Campbellford, Ontario.
| Regular season | Playoffs | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Team | League | GP | PIM | GP | G | A | Pts | PIM | |||||
| 1926–27 | Niagara Falls Cataracts | OHA Jr | — | — | — | — | — | 4 | 2 | 0 | 2 | 0 | ||
| 1927–28 | Niagara Falls Cataracts | OHA Jr | — | — | — | — | — | — | — | — | — | — | ||
| 1928–29 | Oakville Lions | OHA Jr | 12 | 2 | 0 | 2 | — | — | — | — | — | — | ||
| 1929–30 | Niagara Falls Cataracts | OHA Sr | 4 | 7 | 4 | 11 | 0 | 2 | 2 | 1 | 3 | 0 | ||
| 1930–31 | Port Colborne Sailors | OHA Sr | 10 | 3 | 3 | 6 | 15 | 5 | 1 | 2 | 3 | 8 | ||
| 1931–32 | Port Colborne Sailors | OHA Sr | 20 | 6 | 3 | 9 | 38 | 4 | 0 | 0 | 0 | 4 | ||
| 1932–33 | Niagara Falls Cataracts | OHA Sr | 22 | 16 | 12 | 28 | 16 | 5 | 1 | 3 | 4 | 10 | ||
| 1932–33 | Niagara Falls Cataracts | Al-Cup | — | — | — | — | — | 6 | 3 | 0 | 3 | 0 | ||
| 1933–34 | Ottawa Senators | NHL | 48 | 11 | 15 | 26 | 26 | — | — | — | — | — | ||
| 1934–35 | St. Louis Eagles | NHL | 25 | 2 | 2 | 4 | 11 | — | — | — | — | — | ||
| 1934–35 | Boston Bruins | NHL | 17 | 1 | 1 | 2 | 4 | — | — | — | — | — | ||
| 1934–35 | Boston Cubs | Can-Am | 7 | 4 | 2 | 6 | 2 | — | — | — | — | — | ||
| 1935–36 | Boston Bruins | NHL | 23 | 0 | 1 | 1 | 6 | — | — | — | — | — | ||
| 1935–36 | Boston Cubs | Can-Am | 22 | 11 | 6 | 17 | 24 | — | — | — | — | — | ||
| 1936–37 | Providence Reds | IAHL | 8 | 1 | 3 | 4 | 7 | — | — | — | — | — | ||
| 1936–37 | Montreal Maroons | NHL | 31 | 9 | 7 | 16 | 13 | 5 | 0 | 1 | 1 | 0 | ||
| 1937–38 | Montreal Maroons | NHL | 36 | 0 | 3 | 3 | 20 | — | — | — | — | — | ||
| 1937–38 | Springfield Indians | IAHL | 8 | 2 | 1 | 3 | 0 | — | — | — | — | — | ||
| 1938–39 | Hershey Bears | IAHL | 31 | 9 | 2 | 11 | 4 | 5 | 1 | 1 | 2 | 8 | ||
| 1939–40 | Hershey Bears | IAHL | 52 | 13 | 18 | 31 | 8 | 6 | 1 | 2 | 3 | 2 | ||
| NHL totals | 180 | 23 | 29 | 52 | 80 | 9 | 0 | 1 | 1 | 2 | ||||