Who is this A.P.G.? I would think unlikely it is A.P. Gibbs.

Could be Augustus Pemberton Gipps - 20th Dec. 1828 ~ 7th June 1920, age 91.

Tom, we visited APG's grave in TW.

In ”God’s Glad Tidings” of 1873 , There is an article entitled "The Story of My Conversion", by A.P.G. In it he mentions a daughter [Clara] who wrote a letter to her brother "A" [Alexander]. This is probably Augustus Pemberton Gipps, 1828-1920.