Pennoyer is a Welsh surname. People with this surname include: Albert A. Pennoyer (1848–1908), merchant Albert Pennoyer (1888–1957), artist and member of the Monuments Men Paul Pennoyer Jr. (1920–2010), American lawyer and Navy veteran Paul Pennoyer Sr. (1890–1971), American lawyer and diplomat Peter Pennoyer (born 1957), American architect Robert Morgan Pennoyer (1925–2023), American lawyer and author Sylvester Pennoyer (1831–1902), American politician William Pennoyer (1603–1670), British businessman and philanthropist
See also Pennoyer
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