Here is a bit more info I found at the Monroe Co, Historical Society on the Vass family.
Rice Curtis Vass, born 1750 Spotsylvania Co, Va. 1st wife, Ann in 1772, and 2nd wife, Peggy, in 1784.
1. John Vass , born 1773, Rockingham co, Va; m'd Mary Cathrae, 5 Nov 1800. His 2nd wife was Jane Cornwell. They m'd 16 Jul 1821, listed under #F3, J2131 at Courthouse. He died June 1847.
2. Elliott Vass, born 1779, Botetourt Co, Va. M'd Mary Lang, 15 Mar 1822. Died before 1852.
3. William Vass, Sr, born 1780, died Sep 1854.(I have a note that he was age 70 in the 1850 Monroe Co, WV, census)
4. Robert Vass, born 1782, Monroe Co, Va, now WV, m'd Mary (Polly Ann)H. Steele, 30 Aug 1810. He died 1852
5. Leland Vass, born 1783. Was in the War of 1812, and was a pensioner. He m'd Mary R Deaton, Pearisburg, Giles Co, Va, 11 Jun 1824.
The above mentioned children were obviously those of Rice Curtis and wife, Ann.
Children of Rice Curtis and wife, Peggy:
6. George Washington Vass, born 1785, m'd Nancy Chapman, 23 Apr 1816. His 2nd wife was Margaret A Erskine, 19 Dec 1842. His 1st wife may have been Nancy Chapman. (The 1850 Monroe Co, Census, shows George Vass, age 65, farmer; Margaret, age 35, Alexander, age 10, John, age 7; Rice C, age 6; Henry C, age 4; and Julian, age 3). He died Jun 1855.
7. Boswell Vass, born 1790. (The 1850 Monroe Co, Census shows Boswell Vass, age 54, farmer; Elizabeth, age 35; Rice C, age 16; Ann E, age 14; William E, age 13; James L, age 11; Mathew E, age 8). My notes: Boswell married Elizabeth Ellison in 1833. This may have been his 2nd wife. They moved to Raleigh Co, WV, before the war. He was a school teacher at Maple Meadow.
8. Philip V Vass, born 1796, Monroe Co; m'd Jane Hutchinson, of Pembroke, 9 Aug 1821. He died 15 Sep 1856.
9. James Madison Vass, born 1799; m'd Mary Polly McGhee, 4 Aug 1821. He died Apr 1864.
(The 1860 Monroe Co, census shows James Vass, age 61, farmer, $600 and $100 worth; Mary, age 56). My note: He m'd Polly McGhee in 1822.
10.Rice Curtis Vass, Jr, born 1800, Bath Co, Va, m'd Mary Mason of Highland Co, Ohio, 4 Apr 1822. He died 1858.
11.Nancy Vass, Monroe WV