Hi, Stefan.I have a copy of the book, "Revolutionary Patriots of Frederick County, Maryland 1775-1783 by Henry C. Peden, Jr (Westminster, MD:Family Line Publications, 1995).
Pedan has gone through all the sources he can find and arranged the information alphabetically.Your Houcks appear on page 188:
HOUCK, Jacob.Paid for services he rendered to the mmilitary in December, 1779 (nature of the services not stated).[Ref V-45]
HOUCK, John.Juror to the Oath of Allegiance in March, 1778 [Ref:S-267, but not listed in Ref:C-30].
HOUKS, Mathias.Priavte who enlisted on July 19, 1776 [Ref A-51]
The references are at the front of the book; the numbers above would be page numbers.
V is Archives of Maryland, Volume 43."Journal and Coirrespondence of the State Council of Maryland, 1779-1780" (Baltimore:The Maryland Historical Society, 1924)
S is Frederick County Court Minutes, 1778 (Original Record Books at the Maryland State Archives in Annapolis, Accesion No. MdHR 6833)
C is Carothers, Bettie.9000 Men who Took the Oath of Allegiance and Fidelity to Maryland During the Revolution, Volume I (Lutherville, Maryland:Privately Compiled by the Author, 1978)
A is Archives of Maryland, Volume 18."Muster Rolls and Other Reords of Service of Maryland Troops in the American Revolution, 1775-1783"(Baltimore:The Maryland Historical Society, 1900).
As exhaustive as Peden tried to be, there are other sources like DAR records that will contain information not in Peden's book, which does not claim to be a complete biographical record for any of the people named.