Gates waxa uu ku dhashay Seattle, Washington, Oktoobar 28, 1955. Waxa uu ahaa ina William H. Gates Sr. (d. 1925) iyo Mary Maxwell Gates (1929<unk>1994). Waalidiintiisa waxaa ka mid ah Ingiriisi, Jarmal, Irish, iyo Scots-Irish. Aabihiis wuxuu ahaa qareen caan ah, hooyadiisna waxay ka soo shaqeysay guddiga agaasimayaasha First Interstate BancSystem iyo United Way. awoowe hooyadii Gates wuxuu ahaa J. W. Maxwell, madaxweynaha bangiga qaranka. Gates wuxuu leeyahay hal walaashood oo ka weyn, Kristi (Kristianne), iyo walaasheed ka yar, Libby.
barnaamij sameynta