Can anyone help me to identify the Austin ARINGTON (age 17) in the 1850 census in Prince William Co, VA. He is living with the Silas REID family ... the third family enumerated after Albert ARRINGTON (age 25) with whom Washburn ARRINGTON (age 58) resided. Is Austin a son of Washburn?

All I know about the Austin that I am looking for is that he reportedly was born in Leesburg, Loudon Co on 11 Jun 1832 and he had a brother Thomas born in 1819 in Fairfax Co, VA. Austin and Thomas moved to Carroll Co, MD by 1855.