Lieutenant Jacobs was a nurse who made appearances in at least four early Season 2 episodes of M*A*S*H. The part of Lt. Jacobs was played by Marcia Gelman who is also one of the five running nurses during the opening sequence of the show. Early appearances of Gelman as Lt. Jacobs were uncredited. She was later credited as "nurse". Only in "Carry On, Hawkeye" was the name of the character finally revealed as "Nurse Jacobs".