Fidelia Buck was born September 25, 1829, in New York State, the daughter of Jeremiah and Waite Gould (Lewis) Buck.
She was married to Thomas Hudson on September 3, 1851, and they came to Illinois in 1852. They had nine children, two of whom died in infancy. After her husband's death in 1904, Mrs. Hudson lived with her youngest daughter in Erie.
Mrs. Hudson was a zealous Christian worker and a great student of the Bible.