My 2G Grandmother was Margaret Glenn, d/o William Glenn and Margaret (?). Margaret was born about 1823. She had a brother Henry who was born about 1821. Her parents were born about 1788 and 1791 respectively.
Margaret married Benjamin Wilkins about 1846 with their first known child, Matilda Frances, born 1847. Their last known child, Charles Mansfield, was born 1865. In 1850, they lived in Philadelphia. By 1860, they lived in Norristown where Margaret died before 1880 (her husband was a widower on the census).
Brother Henry married Margaret (?), also born about 1821 in Scotland. In the 1850 census in Norristown, they had no children. I've seen at least two Henry Glenns with wife Margaret in the Philadelphia region, but I don't know if either of them is mine. The right birth years, but not the same people.
Does anyone have any information on this particular Glenn family? William and Margaret (parents) claimed Pennsylvania births in 1850, but you and I know that's not always accurate.