Tim McGraw is a family man through and through, raising his three daughters Gracie, Audrey, and Maggie with the help of wife Faith Hill.MORE: Tim McGraw sends 1883 fans wild with unexpected throwback photo from setHowever, the country star had a fraught childhood of his own, involving struggling to make ends meet at times and a difficult family structure.VIDEO: The true story behind how Tim McGraw and Faith Hill fell in loveHe was raised by his mother Betty and stepfather Horace Smith, with two younger half-sisters from their marriage.Tim has commended his mother for raising him and his sisters when times were tough, given she had him quite young and didn't get to graduate high school as a result.MORE: Tim McGraw and Faith Hill's $60million property portfolio including private Bahamas island"I'm so proud of her," he said in an Instagram video on her birthday. "She worked her butt off, working three jobs when we were kids and raising me and my sisters.