Yes. In 1851, he is 24 and a shoemaker. Home is Fintry. His birthplace is Lanarkshire. Nothing in Fintry in 1861. There is a Robert Kerr, age 32, shoemaker in Milton, born Glasgow, with wife Margaret and daughter Janet, age 0, in 1861. This looks like the only possibility with details that match. Would his marriage record for Margaret identify him as a widower?