Posting this here as it probably is too detailed for my thesis. A member of Wanganui Central Baptist Church contributed the following memory of pumping the organ: “[W]ell do I remember keeping the bellows gauge up to ¾ mark for normal music. But it was coats and ties off and full pressure for the “Doxology” or the Hallelujah Chorus.” (A.F. Woodbury, Pastors and People,, 90.)
Another memory described the organ pumping boys (pumping from outside the church) doing their duty for the opening singing, then making the usual lap round the block to the dairy, and then back in time to pump up the organ for the closing hymns.