May 1st, TA 3020, Sam marries Rosie Cotton and moves into Bag End. A nice throuple thing occurred and all 3 of them are "supposedly" very happy.
March 25, 3021, Sam's first born of 13 kids occur with Elanor the Fair (also known as Elanor Fairbairn and Elanor née Gamgee/Gardner)
Sept. 29, 3021 6 months later Frodo says "Peace" I am tired and goes to the Undying Lands with Gandalf. 61 years later Rosie Cotton / Sam's wife dies so Sam goes to the Undying Lands to live forever with Frodo.
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So all it takes is 6 months of a New Born to cause a Ringbearer to say I had enough