Good to see you posting here Ruth. Does that mean that your partner doesn't know exactly how old she is? That sounds quite difficult to live with these days. Has she chosen one date and uses that one? (Don't answer if it's too personal, I'm just curious...most people these days know exactly when they were born, some even to the minute!) I've got multiple instances in the past, though, of relatives merrily adding and removing up to 10 years in successive censuses!
What a terrible shame that your grandmother threw out your grandfather's research...maybe she was ashamed by the illegitimacy? That was quite a source of shame until quite recently. There wouldn't be anything for Steven to do now, though, if she'd kept it all!
I too would love to know what the '...' after Ann went up to Nat's room means! Perhaps he delved further into her cabinet?