. "1873Z"^^ . "Prior, Matthew"@en . "1806-05-16Z"^^ . "Prior, William Matthew"@en . "William Matthew Prior"@en . "William Matthew Prior"@en . "1873-01-21Z"^^ . "William Matthew Prior (May 16, 1806 \u2013 January 21, 1873) was an American folk artist known for his portraits, particularly of families and children."@en . "American painter" . . . "1806Z"^^ . .