1907 Graffiti?

I walk on the moor several times a week and often walk across this stone. My Great Grandfather David Binns ( 1869 -1959) was a stone mason and quarry man and reputedly worked on this moor ( he certainly worked and lived very close to it). His younger brother Abraham Binns (1870 -1937) worked with him and I often wonder if at the age of 37 he did this. There are several other engravings on the same stone but this is the oldest one. I often wonder who did it and why, and was it Uncle Abe?

forgot to say didn't upload yesterday's photo until today so you may want to have a quick peek at yesteday's entry.