Hi, all! Have found a memorial tribute to my grandfather, Circuit Court Judge Joseph Carbery Mattingly. In it there is mention that he moved with his family to "Sunnyside" at age 6 months. I'm guessing this is in Oxon Hill, MD as he then bought "Greenwood" and settled there with his own family. Is there anyway I can find out the location of "Sunnyside?" This would be in 1871 or 2 as he was born in July of 1871. Would appreciate any help in this matter! Best regards, Elizabeth