Following the resignation of Captain Cox, William A. Naylor was appointed the new captain to the unit. Naylor first received his commission with the unit as First Lieutenant on November 20, 1861, mustered in on January 1862. His new commission was dated for June 3, 1863 and officially mustered into this position on August 4, 1863. He mustered out of the Indiana 10th on January 23, 1965.
According to a memorial record, Captain Naylor was born September 15, 1827. He enlisted in the Mexican war at the age of 17. Following the war, he moved to Doniphan Missouri in 1869 and worked as mill wright for Colonel Righter who then owned old Bay Mill. He married in 1874 to Nancy A. Watts and they had 5 children together, 4 daughters and one son who survived him. A pensioner salary had him receiving $ 30.00 monthly since 1891 and passed on August 10, 1900 at 73 years old.