DCHP-1 Online
pitch in Fur Trade 
bring in a season's fur catch to a post for crediting against debt (def. 1); visit a post to replenish supplies.
See also: debt (def. 1) pitching-off debt
- 1934 As soon as the Indians had all "pitched in" we packed the furs and pressed them into ninety-pound bales for convenience in transportation.
- 1956 There would be the Christmas and the Easter seasons, the season when our trapping families "pitched-in" to the post.
- 1934 As soon as the Indians had all "pitched in" we packed the furs and pressed them into ninety-pound bales for convenience in transportation.