2 entries match your criteria. Related Historical Markers By Roger Dean Meyer, April 28, 2007 Is this the birthplace of John Hanson? SHOWN IN SOURCE-SPECIFIED ORDER1► Maryland (Charles County), Port Tobacco — Mulberry Grove — Birthplace of John Hanson — April 14, 1715 — On Mulberry Grove Place. 2► Maryland (Prince George's County), Oxon Hill — John Hanson — On Oxon Hill Road (Maryland Route 414) 0.3 miles east of Indian Head Highway (Maryland Route 210), on the right when traveling east.