Non-Golf: The Snowball by Alice Schroeder.
But, since there's a little golf in everything, here's a snip,
"The boys [Warren Buffett and his friend] had started to golf. John McRae's father worked as a greenskeeper at Tregaron, a famous estate close to downtown Washington that belonged to heiress Marjorie Merriweather Post and her husband, Joseph E. Davies, who was ambassador to Russia. The family had dozens of servants and was almost never home, so the boys went over and played on the nine-hole golf course."