Hello Edmund - the publishers of the Jarvis book of Psalms and Anthems was Goulding, D'Almaine, Potter at 20 Soho Sq.. They were at this address from 1810 - 1823. My family history does have Stephen Jarvis arriving at the Port of Baltimore in the third quarter of 1820 and there were references to an earlier failed attempt reportedly in 1816. My understanding is that the years 1815-16 were involved in the publishing.
There are modern performing editions of four of Jarvis' psalm tunes on the Choral Public Domain Library (see http://www.cpdl.org/wiki/index.php/Stephen_Jarvis ). Is there any evidence for an 1815-16... more