I have an answer for physics student Does anyone know his email!?
Your area should have a local United Way/Community Chest affiliateAlso, call the local Adult Protective Services as they will provide information pertinent to the needs of Senior Citizens.
Try your Area Agency on Aging; see if they will send in a Home Health Aid; also can advise you on low cost elderly housing if it is really necessary or someone who can make low cost modifications to the bathroom.
So let me see if I understandYou did someone else's work for them, for free, without even knowing how to get in touch with them, nor asking for any kind of compensation monetary or otherwise?