According to the death certificate:
Rose Ball was 81 years old at the time of her death in 1950. That would place her birth around the year 1869. She would be around 19 years when she arrived to work for the Watchtower around the year 1889, which would confirm Maria Russell's account.
However according to the death certificate:
Rose Ball was 25 years old when she was married. This would be around the year 1894/1895, which would be too early. As I remember, she was not married until 1897 or 1898. She was also married in New York, not Allegheny.
Who married them? Was it Charles T. Russell or someone else?