Piquenard was an architect and designed the Illinois and Iowa capital buildings. He moved to Springfield in 1870 from Missouri so that he could oversee the construction on the Illinois Capitol.
Piquenard first joined a Union infantry regiment as a private; by the end of the war, he had been promoted to captain and commander of "Piquenard's Company of Pioneers," a unit of construction engineers.
He died in 1876 of liver disease brought on by malaria, which he had contracted during the Civil War.
A. H. Piquenard, esq., the supervising architect of the new state house, who had been in feeble health for some months, died at his residence in this city a little before 12 o'clock last night. Mr. Piqunard came to this city from Chicago. He leaves a family.
IL State Register, Springfield, IL, 11-20-1876
Civil War Soldier Records and Profiles, 1861-1865
Name: Alfred H Piquenard
Enlistment Date: 20 Aug 1861
Enlistment Rank: Captain
Muster Date: 20 Aug 1861
Muster Place: Missouri
Muster Regiment: 4th Infantry
Muster Regiment Type: Infantry
Muster Information: Commission
Muster Out Date: 1 Feb 1863
Muster Out Information: Mustered Out
Side of War: Union
Survived War?: Yes
Was Officer?: Yes
Bio by: Connie Nisinger
Marie Rosa Piquenard