T 1 (2 yrs) never told him.
T 2 (2yrs) never told him.
T3 (2 yrs) asked me outright at about the 6 mos mark, and I admitted it.
Frau T (2 mos) asked first session, and I admitted it...she referred me out.

Trauma T (5 mos) knew going in because Frau T told her.