I'm looking for feedback on the following assumptions regarding William Brann, Sr.'s sons:

Nicholas, Jeremiah (by reference to his and window's successful pension claim), Edward, Matthew were brothers and served in the Revolutionary War
(Bounty Land Claim, Nicholas Brann heirs, April 23, 1855)

William Brann, Jr. (Census Records for Westmoreland Co., Virginia)

William Brann had 5 sons who served in the Revolutionary War
(Pension Claim, William Brann, Sr., March 6, 1834)

Possible other sons names: Andrew or Samuel (but not both). Virginia Continental Army gives names William, Jeremiah, Nicholas, Matthew, Andrew and Samuel (Edward is not named and only four of William Brann, Sr.'s "5 sons who served" are accounted for in Pension and Bounty Land Claims).

All were of Westmoreland County, Virginia.

Other facts pieced together from the Pension, Bounty Land Claims, Cemetery and Census Records:

William Brann, Sr.,
b. 6 May 1748 in Westmoreland Co., Virginia
d. aft 1840 (census)
m. ?
b. abt 1750

Edward Brann

Matthew Brann

William Brann, Jr.

Nicholas Brann
b. Westmoreland Co., Virginia
d. 1797, Ohio
m. Rebecca ?
d. abt 1846, Butler Co., Ohio

i. Richard Brann
ii. Alis Brann

Jeremiah S. Brann
b. abt 1760, Westmoreland Co., Virginia
d. 27 Jul 1834, Butler Co., Ohio
m. Sarah Reeder, 20 Mar 1789, Hampshire City, (West) Virginia
b. 27 Jun 1763, Loudoun Co., Virginia
d. 24 May 1852, Butler Co., Ohio

i. Vincent Brann
b. 26 Oct 1791, Columbia, Hamilton Co., Ohio
d. 5 Apr 1880, Butler Co., Ohio
m. Elizabeth ?, abt 1810
b. 12 Apr 1791, New York
d. 3 Sep 1864, Butler Co., Ohio