I, too, have not been to the forum in some time. The William Marriott (1872-1948) I am researching is my great-grandfather. I do not have my records in front of me, but from memory his children included Vincent (my grandfather), William (Bill), Margaret, Pearl, Kate (Katherine), and Howard. I am forgetting at least one, but I will check my notes and post another follow-up.
It doesn't look like your William and my William are the same, but maybe there is a connection. Did Richard have other siblings that may have also lived in the Trenton area?