I have this William Hallowell, b. 25 Sep 1796, son of Jesse Hallowell and Sarah Lukens Hallowell, he died 6 Jul 1850 in Montgomery Co. PA. He married Margaret Slivers c1826 and they had Joseph, Sophia, Tamyson, Samuel, Sarah, Maria, William, and Howard. The William Hallowell who was son of Amos Hallowell and Elizabeth Roberts was born in PA in 1805 and his middle initial "R" probably stood for Roberts. He was born in PA but moved his family to Baltimore, then Indiana, then eventually Kansas. Contact me at firstname.lastname@example.org
for complete info.