Given the question: Facts: - successor: robert p. flenniken samuel hays james thomson - party: whig - death date: 15 september 1856 - predecessor: isaac rand jackson henry marie brackenridge william little - office: united house of representatives from pennsylvania 's 22nd district 10th mayor states of pittsburgh ambassador to denmark member of the u.s. - spouse: frances her death -rrb- sophia arabella bache -lrb- 1839 -- 1856 everallyn , his death -rrb- rose irwin -lrb- ? -- 1836 , - term end: 1851 march 4 , 1843 1841 - children: john irwin agnes irwin robert walker irwin - birth date: 08 january 1803 - term start: 1850 march 4 , 1841 1840 - name: william w. irwin - death place: pittsburgh , pennsylvania - birth place: pittsburgh , pennsylvania - alma mater: western university of pennsylvania allegheny college Based on these bullet points, write a short biography describing the life of william w. irwin .
The answer is:
william wallace irwin -lrb- january 8 , 1803 -- september 15 , 1856 -rrb- was mayor of pittsburgh and a whig member of the u.s. house of representatives from pennsylvania .