SCHEMA:
CREATE TABLE table_name_61 (pick__number VARCHAR, team_from VARCHAR, league_from VARCHAR, nationality VARCHAR)
USER:
Which Pick # has a League from of ontario hockey league, a Nationality of united states, and a Team from of brampton battalion?

QUERY:
SELECT COUNT(pick__number) FROM table_name_61 WHERE league_from = "ontario hockey league" AND nationality = "united states" AND team_from = "brampton battalion"