The Doolittle Coat of Arms was granted to Clark of Kent by act of parliment in 1621. His mother was a proven descendant of Rudolph of Dolist, uncle of William the Great and the first to be surnamed Doolittle.

• ARMS: Barry of four vert and gules, three plates, four bars, green and red placed horizontally across the shield, with three roundels of silver, usually placed two above and one below.


• CREST: A unicorn's head erased argent crined and armed or gorged with a collar, gules charged with three plates. Head depicted with jagged extremities as if torn off, in silver with horn of gold, having neck encircled with a red collar with three small silver roundels; helmet below unicorn's head and above the shield is silver.


• MOTTO: Nemo me impune lacessit.


• TRANSLATION: No one provokes me with impunity.