Well the engineer on this 45 track was Jim Stanton.
That must be the same Jim Stanton that ran Champ Records and Champ Sound Studio (of 1705 Church St. Nashville).
Don't think the studio itself was up & running untill sometime into the 70's, but Staton was known as a producer & engineer on country, blues & gospel tracks before that.
He produced / engineered loads of gospel tracks in the 1970's, most being custom recordings commisioned by the group / singer or their manager.
Maybe this was a 'one off' session for this group that he was paid to work on (maybe he produced the track as well, no producer being credited on the label).
Some of the gospel sessions he worked on resulted in releases on the Champ label itself in the 70's, but many escaped on other labels such as HSE.
He produced / engineered this track on the Speight Sisters that was released on HSE .............