Hopefully this won’t seem too morbid but it is rather interesting to read about how dogs died and at what age around the turn of the century. One source for such information are the doggy papers of the era as they regularly reported deaths, usually after receiving a letter from the owner, although cause of death and age were not always given. Here is a group of death notices from 1886.
Please let me know if you would (or would not) be interested in additional posts chronicling reported dog deaths. Sometimes I get in the weeds and forget that not every vintage dog detail that interests me fascinates everyone.