His The naval and military exploits which have distinguished the reign of George the Third, 1820: t.p. (Jehoshaphat Aspin) p. vi (preface signed at Islington, Sept. 1820)
Allibone (Aspin, J.; educational works in first 2 decades of 19th cent.)
BLC (Aspin, Jehoshaphat, professor of history; in distinction to Aspin, Jehoshaphat, accountant)
NUC pre-1956 (Aspin, Jehoshaphat; usage: Jehoshaphat Aspin and J. Aspin) [misfiled at end of his file is the hdg.: Aspin, Jehosaphat, accountant; his usage is "Jehosaphat Aspin [without the 2nd "h"], accountant, formerly actuary of the Finsbury Savings Bank"]