Yeah, given those parameters, all Bruce probably remembers is a vague sense of /pause/ in the shock, and likely blended the features of the foster-mother with his own mother's. There may be less of a surviving impression of the foster father, especially if he had to be careful when approaching Bruce at all.

I'd love to know what Hulk remembers, and how he stores it. (Sounds, smells, emotions? How sequenced?)

Huh, certain markers, trying to offset a word for emphasis, actually make it disappear. It's in the text when I edit, though.