TRURO not by Williams

Chris Fenner has done excellent research showing the TRURO appears before the Psalmodia publication. https://www.hymnologyarchive.com/jesus-shall-reign

In England, Watts’ text is commonly sung to TRURO, a tune of unknown authorship, first printed in Musica Sacra, Being a Choice Collection of Psalm and Hymn Tunes . . . As They Are Used in . . . the Countess of Huntingdon’s Chapels (Bath: W. Gye, ca. 1778 | Fig. 4). It appeared there with “Zion, awake; arise, arise!” which, like Figure 2, is a text from A Collection of Hymns for the Use of Those that Seek (Kendal: Ashburner, 1757). The tune later appeared in Thomas Williams’ Psalmodia Evangelica (1789), and it is often erroneously reported as originating from that collection.