I LOVE Scottish certificates!
A tree on Ancestry has the image of Joseph Woodman's death certificate. Transcribing, it says:
Joseph Woodman Fisherman (Widower of Margaret Martin) male Age: 77
died 1924 January 28th 11 h. 50 m A.M. Summergate Annan
Cause of Death: Senility As cert by R. Smith L.R.C.P & C
Name and Maiden surname of Mother: Margaret Woodman (Afterwards married to John Rawlinson Fisherman) (deceased)
Informant: Joseph Woodman Son 3 Rosevine, Upper Kenziels, Annan
Reisgtered 1924, Jauary 28th at Annan
Looks like John Joseph may have been illegitimate and that the cause of the discrepancy between the 2 certificates that you have.
The Ancestry tree is the "Woodman/Hawthorne" tree and belongs to "pr0xibus"
Oh,
that's you