If so those records probably won't be digital, so a long slog through probate records is in order. Some states have old court (listed under probate, court, adoption, guardian, will, etc.) listed by state, some by county, and some are individual towns and cities. Find out how Maryland lists it, by the address known, and there's your starting place. I'm on a kind of similar court records search in MA & RI. Good Luck!