"Lowrie, Matthew B."@en . . . "Mathew B. Lowrie (1773 \u2013 July 28, 1850), served as the Mayor of Pittsburgh from 1830 to 1831."@en . . "1850Z"^^ . . . "5thMayor of Pittsburgh" . "American mayor" . . . . . "1850-07-28Z"^^ . . "Matthew B. Lowrie"@en . "1773Z"^^ . . .