You want to check with churches or some local groups on Meetup.com. Other than that the only other option is your local psychotherapist office. However, that can take time to get in etc..
Compassionate Friends (they focus on child loss) has two applicable local chapters. One in Prince Frederick, one in Leonardtown. The Prince Frederick chapter meets the 4th Monday of each month and the Leonardtown Chapter meets the 2nd Thursday of each month. http://www.compassionatefriendssomd.com/meetings_and_locations.aspx