Virginia is possibly Patsy in the 1850 Census:
1850 U.S. Census, Essex County, Virginia
Page 93
Dwelling 482, Family 482
Dunn, John P., 30, male, farmer, $2,000 real estate, born in Virginia, unable to read or write
Dunn, Patsy, 27, female, born in Virginia, unable to read or write
Dunn, George, 10, male, born in Virginia
Dunn, Mary, 14, female, born in Virginia
Dunn, Patsy, 12, female, born in Virginia
Dunn, John, 8, male, born in Virginia