File:Coat Of Arms - Dr Thomas Kingsbury 1742.jpg
Azure, a chevron or between two doves in chief, proper, and a serpent in base,
nowed of the last. Crest a wyvern vert. Motto : Prudens et innocens [Latin: prudence and innocence]."
—Burke's General Armoury, ed., 1878
The genealogy of the descendants of Henry Kingsbury, of Ipswich and Haverhill, Mass. Publication date 1905 Publisher Hartford, Conn. : Hartford Press
https://archive.org/details/genealogyofdesce00inking/page/20/mode/2up