I really don't have a great deal on Dorothy's parents.
Her father is Thomas Whitlatch, born about 1792, died after 1852.Her mother was Dolly Pethel, born 1795 in Greene Co., Pennsylvania, died after 1852.
Dolly's parents are unknown.
Thomas's parents were Thomas Whitlatch, born between 1756 and 1762, perhaps in the London area of England, date of death unknown and Elizabeth Unknown born between 1756 and 1762, date of death unknown.(These dates for Thomas and Elizabeth come from the 1790, 1800 and 1810 censuses.)There is some evidence that Elizabeth's full name is Mary Elizabeth Lazear, but this has never been proven to anyone's satisfaction.
Thomas and Dolly Pethel Whitlatch were in Wood Co., West Virgina around 1852.It is thought that they left Wood Co. and headed west.Nothing further is known about this couple.
If anyone out there has more info about this family, I sure hope they will share with us.