I found this interesting history on the family's of gunsmiths Michael and Jacob Truby of Armstrong Cty, PA.
"COL. CHRISTOPHER TRUBY, ancestor
of Mrs. Caroline (Truby) Robinson, widow
of Elisha Robinson, came to this section from
Bucks county. Pa., where he was born in 1736,
and settled on land which is now part of the
site of Greensburg, Westmoreland (then Bed-
ford) county, about 1771. He was one of the
important men of the region in his day, having
been commissioner for Westmoreland county
in 1774, and justice of the peace June 11, that
year. On Aug. 18, 1784, he was reelected
justice of the peace and judge of the court of
Common Pleas of the county. He owned a
blockhouse or fort upon his property in Hemp-
field township, Westmoreland county, which
was a place of refuge for the early settlers.
He built the first courthouse at Greensburg.
During the Revolutionary war he was ex-
tremely active in the Colonial cause. In Feb-
ruary, 1778, he was a captain of the West-
moreland county militia, his son Michael
(who was an early settler of Kittanning, Arm-
strong county) acting as drummer whenever
the company was called into service. In 1790
Christopher Truby served as lieutenant col-
onel in General Harmar's campaign against
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HISTORY OP ARMSTRONG COUNTY, PENNSYLVANIA
the Indians, he and Maj. James Paull com-
manding the battalion of Pennsylvania militia.
A letter from the war department, Washing-
ton, D. C, to Miss Elizabeth R. Robinson,
Nov. II, 1903, shows the following: "Christo-
pher Truby served as a member of Colonel
Barr's Detachment of Pennsylvania Militia,
Revolutionary war (rank not stated), which
was ordered out on an expedition to the In-
dian country by Brigadier General Hand, com-
manded by Col. Alexander Barr. His name
appears on a general pay abstract of the de-
tachment. This abstract, dated March 9, 1778,
shows the soldiers in service from Feb. 10,
1778, to March 8, 1778." Christopher Truby
died Feb. 20, 1802, and was buried in the
German cemetery at Greensburg. His name
appears with those of William Findley, John
Kirkpatrick, Frederick Rohrer, Dr. Simeon
Hovey, James Hill, and others, as supporters
of the government and George Washington,
in a petition dated 1794 (inhabitants of West-
moreland county).
Colonel Truby married Isabella Bowman
and had seven children, the four sons being
Michael, Christopher, Jr. (born 1761, died
1845, buried near Millers Eddy, in Perry town-
ship, Armstrong county), Jacob and John.
Michael Truby, son of Christopher, is
named on the list of pioneers for Revolu-
tionary and military services in Armstrong
county, granted pensions as soldiers of the
Revolution by Act of the Pennsylvania Legis-
lature March 20, 1838.
Samuel Truby, son of Michael Truby, was
bom in 1808, and died aged eighty-four years.
He married Anna Sterling, and they were the
parents of the following: Jerome died aged
nine years ; Caroline became the wife of Elisha
Robinson ; Amanda married Dr. C. M. Matson,
of Brookville, Pa., she being his second wife
(all the children of his first union are deceased
except Dr. Eugene Matson, of Pittsburgh ; by
the second union there was one son. Dr. W.
W. Matson, a physician of Brookville) ; Mary
married Capt. Frank Qark ; Sarah never mar-
ried; Samuel C. was a jeweler of Brookville.
All are deceased except Mrs. Elisha Robin-
son."