Historical records indicate that Indian Jack lived with the McDonald Family, James C. (FaG Mem. #112648088) and Elizabeth Ellen Forest (FaG Mem. #83922569), in a family of fifteen children. It is written that in 1850 Jack was born in Indian, Penobscot, Maine, United States. The grave stone shows year of birth as 1848.
The details of his migration to Texas are currently unknown.

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Pleasanton Express July 22, 1964
(condensed)
Saga of Indian Jack
KIOWA BOY CAPTURED BY WHITES…

Texas history is studded with incidents of how white children were captured and sometimes raised by Indians.
But an anomaly-a captive Indian boy reared by whites-makes an interesting chapter in Atascosa county happenings.
He was known simply as "Indian Jack." That's the way his tombstone in Poteet"s Rutledge cemetery is marked. He was a runty boy, Kiowa or Comanche, perhaps 10 years old and wounded, when he went to live with the Jim McDonald family in the Iuka community, a couple of miles east of Sand Branch.
"I can remember him all right," said Carroll McDonald, water superintendent at Poteet, "but I was just a kid when he was an old man. He used to show me his arm where he'd been hit by a musket ball. But I don't remember much about his history."
Mr. McDonald is a grandson of James McDonald, Sr.
Indian Jack lived with the McDonald family all of his life after his capture. He died in 1918 when he must have been about 70 years old. His tombstone shows that he was born in 1848 and also that he was captured that same year by S. Ross and Major Van Dorn.
One story has it that Indian Jack and another boy had hidden in a hollow tree trunk, popped their heads out to see what was going on and were captured.
Indian Jack, at least, was brought to San Antonio where Jim McDonald obtained him. Jack's left upper arm had been mangled by a musket ball. "The arm always bothered him," said Carroll McDonald.
One tale says that McDonald purchased Indian Jack.
Throughout his life he performed only the simpler chores around the place: Bringing in wood, feeding the cows and horses and, on occasion, helping with land breaking.
Charley Anderson, San Branch old-timer, who'll soon be 85, remembers Indian Jack perhaps as vivdly (sic) as anybody in Atascosa county.
When Jim McDonald, Sr. died, Indian Jack lived round with Mr. McDonald's sons. He was fiercely loyal to the family. He referred to the McDonalds as his brothers and he called all of the women in the family "aunt."
He was addicted to coffee, tobacco and whiskey – if he could get it.
A story is told that two young blades, headed for a dance, gave Jack a drink out of their jug. He wanted more. When they said no, he began chasing them with a butcher knife. He then got more.
He was rattlesnake bitten several times. "I can remember him coming to the house and the family working over him after he'd been bitten on one occasion," Carroll McDonald said.
Indian Jack could be something of a clown when he had been drinking. Charley Anderson remembers one time when Jack was riding a quick-reacting horse. Jack had been given a drink or two.
He'd ride up to a man, lift his hat politely and say, "How do you do, sir." He started off, whirl his horse and add, "Go to hell, you blankety blank.."
Nobody took offense at the runty Indian.
His is one of the intriguing stories in the county's history.
--Courtesy of Elsie Mae Hearn Ottinger