The first thing I noticed when I came into association was how few infirm and/or disabled there were at the Kingdom Hall. After a while it dawned on me that WT is a "healthy" person's organization; if you can't preach you can't be considered a member. That leaves out the unwell, the desabled (both physically and mentally), those going through any kind of hardship, etc. This was in the early 1970's.
As far as literature on the topic, I remember an article in the early 1980's on when to pull the plug on a severely ill person. The reasoning was along the line of would they have a full life if they were to live, balancing the costs of care with other responsibilities. I was shocked that WT took such a cold view!
In the mid- to late 1970's there was an article, I think in Awake!, about children with learning disabilities. I don't think it was an "experience" article, but there were short "experiences" in it. One mentioned discipline. When their child misbehaved the parents were counseled to use corporal punishment (spanking). The parent was quoted as saying the little mite got so many spankings before they realized it was due to a condition. I think the condition was Attention Deficit Disorder. I remember the article because I had a young son at the time who didn't fit the JW mold. The woman who was studying with me was all over me to beat him, to spank him for his disobedience and I wouldn't. I didn't see anything wrong with his behavior (and I still don't, looking back). Then I read that article and felt it was some sort of vindication although one had to claim disability as a reason.
There have been a couple of life experience articles over the years (I stopped reading in the early 1990's for the most part) of families with disabled children. In many cases the families "put the children away", sent them to residential facilities and this was written with a sense of approval as it freed the family members for other "responsibilities". There was even the story of an elder in such a facility and about all the good he was able to accomplish even though the facility was so bad that it was eventually shut down by the state health officials.
WT seems very big on medicating children with disabilities. Other than the "be sure to say hello to the people in wheelchairs" variety it always seemed to me that WT either wants a person healthy or doped into submission. The same holds true for women experiencing physical difficulties and people on overload,and lately even people deemed in danger of leaving the organization; get them on medication (even against their will) and threaten them with disfellowshipping if they refuse to cooperate. This has been the course even up to the present; I know of half a dozen cases in the last 5 years where the elders said meds or DF'd, not all in the same congregation, not even in the same state (USA).