Melvin came to Utah with his mother, Rachael Leah Smith Ross Radford. The Radford family came to Utah sometime between 1848 and 1850. A child was born in Iowa in June 1848, but the first documentation to place them in Utah is the 1850 Utah Census and the birth of a child in Utah in 1850. It is likely that they came in 1850. Further research is needed to determine the name of the company they traveled with.
Birth date is confirmed by Provo 2nd Ward records at the time of a rebaptism on 22 September 1852.