I am trying to find information on a James Pendleton who lived in Mecklenburg County or Union County NC around 1911. He had a son with Martha Helms (may or may not have been married) named Oscar. Oscar's middle name was Harry and he was born in February 1912. The 1920 Census shows Martha and Oscar with the last name Pendleton. Sometime before 1930 they changed both of their last names back to Helms. Any help would be greatly appreciated.
Matt