Target of double bodyweight deadlift, and bodyweight bench... are those her targets, your suggested targets, or just a leftover from wherever you got the sheet?
I train a 64yo woman once a week, her most major physical issue is a previously slipped disc, L4/L5, which affected her sciatic nerve, this last flared up before Easter 2011. (Yes, we're in consultation with doctor and physiotherapist, as well her daughter is a physiotherapist and former gym member I've trained so she keeps tabs on us!) Since then she'd swum a lot for it, I'd given her basic programmes with machines etc to start her off, then bodyweight and dumbbell stuff, a couple of months back she started PT with me, we build her up slowly. She's happily doing kettlebell deadlifts with 16kg, and goblet squats and swings with 12kg, so I feel confident in moving her into the power rack next week, not for squats but rack pulls.
My gym lacks bumper plates, so pulling anything less than 60kg from the floor would require great flexibility and control. So I begin most people in the rack, the lowest safety is usually mid to high shin level. They start with the empty bar, and in the first session almost everyone can do 40kg for sets of 5, though if the person has one or more of - over 50, history of back issues, is under 50kg - then I'm happy if they manage 30kg the first time. Once people can pull 70-75kg from the rack they can pull 60kg from the floor, the extra 10cm or so is basically equal to 10-15kg, depending on the person and their leverages.
I'd be very very happy if my 64yo could pull 60kg from the floor by the end of this year. This would be around her bodyweight. A bodyweight deadlift I consider to be the minimum for a healthy adult to have a good quality of life day-to-day. If that can be achieved by someone over 50 with one or two health issues, I think that's pretty good. My experience is that if they achieve that then a lot of joint, postural etc issues are greatly reduced as problems.