Mark G Johnson age: 73 Known as: Mark G Steere Related to:Lisa Callahan, 58 Has lived in:Bristol, RI Crested Butte, CO Woodbridge, CT Newport, RI Mark C Johnson age: 50 Known as: Martha Johnson Related to:Kimberly Johnson, 46 Carlton Johnson, 83 Has lived in:Johns Island, SC Charleston, SC Kenneth City, FL Saint Petersburg, FL Mark O Johnson Deceased Known as: Mark O'Johnson Related to:Eric Johnson, 64 Has lived in:Warren, RI Newport, RI Melbourne, FL Middletown, RI