From the 1837-1850 Loudoun Co Personal Property Tax Lists:

1837A First District Beamer, George & 4 sons Michl., Geo., Nelson & Jos. T.
1838A First District Beamer, George & sons Mich’l, Geo. & Nelson
1839A First District Beamer, George & sons Michael, Geo., Nelson & Thomas
1840A First District Beamer, George & sons Michl., George, Nelson & Joseph
1841A First District Beamer, Geo. & sons Mich’l., Geo., Nelson & Jos.
1842A First District Beamer, George & sons Mich’l, Geo., Nelson & Peter
1843A First District Beamer, George & son Mich’l, Geo. Nelson & Peter
1844A First District Beamer, George & son Peter and Bagent, Jas.
1845A First District Beamer, George
1846B First District Beamer, George
1847A First District Beamer, George
1848A First District Beamer, George & son James
1849B First District Beamer, Geo. & son James
1850A First District Beamer, George & son James

1844 - 45 First District Beamer, George Jr.
1844 - 50 First District Beamer, Michael
1844 - 50 First District Beamer, Nelson
1845A First District Beamer, Peter

From "Loudoun Co Will Book Abstracts, Books 2A-3C" by Pat Duncan:

BEAMER, George
Will of 10 Dec 1869: wife Elizabeth BEAMER, children Michael BEAMER, Nelson BEAMER, Sarah Ann EDWARDS, Mary Jane WENNER wife of George WENNER, Isabella BEAMER & George BEAMER, grandchildren George Albentis ROPP & Rachel ROPP, great-grandchild Mary Belle YAKEY <21y old, Wm. F. BARRETT & Richard JAMES named trustees and Exors, witnesses Benj. J. GRUBB, Jas. T. WRIGHT & Wm. F. BARRETT. Received in Court 13 Aug 1877. [3B:227]

BEAMER, Michael
Appraisal of 4 & 6 Dec 1875: Court order dated 8 Nov 1875; farm and household items, totaling $3780, notes. Lee BASSELL a son-in-law. Aprs: John M. NIXON, John WOLFORD, Geo. L. MOORE. Returned to court 17 Jan 1876. [3A:251]
[note: I have omitted the sale and additional settlements in this posting]
Settlement with Admr Noble B. PEACOCK: beginning 28 Jan 1879; $345.42 distributed to Caroline BEAMER and children John Samuel BEAMER, Michl T. BEAMER, Bassett LEE, Catharine BEAMER, Henry BEAMER, Rachel BEAMER, W. F. A. BEAMER, Jos. M. B. BEAMER, Maggie E. F. BEAMER, D. W. W. BEAMER, Mary A. V. BEAMER, Mary L. M. BEAMER & S. W. W. BEAMER. Returned to court 11 Aug 1879. [3C:466]

Email me directly if you have questions.

Pat Duncan
GenNutLdn@msn.com