West out of Bishopsgate, on the north side of St. Botolph's Church, at No. 117 (P.O. Directory). In Bishopsgate Ward Without.
First mention: Rocque, 1746.
Strype tells us that adjoining to St. Botolph's Churchyard was an open passage leading to a large house and garden belonging to Francis Dashwood, deceased, and in his maps he calls this walk Dashmoods Walk (evidently an error for Dashwood). Francis Dashwood was Alderman of Walbrook Ward, 1658 (Beavan, I.222). Hence the name of the street. Sir Samuel Dashwood had a house in Devonshire Square (Strype, ed. 1720, I. ii. 109).
A Dictionary of London. Henry A Harben. 1918.