Thanks, all, for your input. And DOC, thanks for that current quote -- which always throws a lot of weight in presenting facts.
Based on that I decided to do a little searching in my WT Lib CD and found the following:
"Likewise today, many young ones have dedicated their lives to serve Jehovah. Akifusa, a 15-year-old, said that a part on the Service Meeting helped him to make his decision to get baptized. Ayumi got baptized when she was ten years old. She wanted to serve Jehovah because she really came to love him. Now she is 13 and just had the experience of seeing her Bible student, who has also come to love Jehovah, get baptized at the age of 12. Ayumi’s younger brother Hikaru was also baptized at the age of ten. "Some said I was too young," he recalls, "but Jehovah knew how I felt. I was determined to get baptized once I decided to dedicate my life to serve him with all I had."" The Watchtower, 1992, 10/1 p. 22
"There were many witnesses to the mass baptism, and among them many photographers and professional newsreel men. In less than two hours 50 baptizers immersed a grand total of 2,373, baptizing 1,545 women and 828 men, the oldest being 87 years of age and the youngest 8 years." The Watchtower, 1952, 1/1, p. 29
Imagine, a child never having entered the most challenging years of his life -- 8 years old.
Your experiences, BOTR, are insightful. " What age would the Witnesses refuse to baptize?" I don't know because I suspect their motive is entrapment. Their punitive hold on the baptized one begins then and they seem to be all about control.
My 11 year old example, in the script above, is of my grandson. I've never met him, given him a hug, or taken him fishing.
In the essay, I want to be fair, and not exaggerate. Looks like I'm going to cut that number down to 8 thanks to Watchtower's own writing.