I still remember a kinky scene in the 1991 DARK SHADOWS series featuring Trask, as played by Roy Thinnes (with the oddest eyebrows I've ever seen), ladeling hot water over a naked, nubile young thang he was punishing. His lust was obvious on his ugly face.
I suspect Rev. Trask isn't much different from Gregory Trask, who in 1897 lusted after his young female teachers and probably forced Rachel Drummond into doing God knows what.
We get the idea that here in 1796, Rev. Trask is probably single, but obviously he must have been married to someone in Salem who bore his offspring (and probably closed her eyes during the act and prayed for it to be over). I don't think they'd quite decided to give Rev. Trask any offspring at this point in the storyline.
Love, Robin