Tim Duncan Family Tree: The Story Behind the Big Fundamental

Timothy Theodore Duncan, born 25 April 1976 in Christiansted, US Virgin Islands, is an American former NBA superstar — 5 NBA Championships (San Antonio Spurs 1999, 2003, 05, 07, 14); 2× NBA MVP; 3× Finals MVP; 15× All-Star; considered the greatest power forward in NBA history.

The Family's Roots: A US Virgin Islands Family

The Duncan family is from Christiansted, US Virgin Islands.

His Parents

Father: William Duncan — mason.

Mother: Ione Duncan — competitive swimmer; midwife. Died 1990 of breast cancer when Tim was 14 (the day before his birthday).

His Sisters

Cheryl Duncan — elder sister; competitive swimmer who represented Virgin Islands at the 1988 Seoul Olympics.

Tricia Duncan — elder sister; also competitive swimmer.

His Ex-Wife: Amy Sherrill

Amy Sherrill — American. Married Tim in 2001; divorced 2013.

Their Children

Sydney Duncan, born 2005 — daughter.

Draven Duncan, born 2007 — son.

His Partner: Vanessa Macias

Vanessa Macias — American; former The Amazing Race contestant. Together with Tim since 2013.

Their Daughter

Quill Duncan, born 2017 — daughter.

The Duncan Family Tree at a Glance

Father: William Duncan — mason.

Mother: Ione Duncan (d. 1990) — swimmer/midwife.

Sisters: Cheryl (1988 Olympian); Tricia.

Ex-Wife: Amy Sherrill (m. 2001, div. 2013).

Partner: Vanessa Macias — from 2013.

Children (Amy): Sydney (b. 2005); Draven (b. 2007).

Daughter (Vanessa): Quill Duncan (b. 2017).

Tim Duncan:

  • Born 25 April 1976, Christiansted
  • Was a competitive swimmer until Hurricane Hugo (1989) destroyed the pool — switched to basketball at 14
  • Wake Forest 1993-97 (Naismith Player of Year 1997)
  • Drafted 1st overall 1997 (San Antonio Spurs)
  • 5 NBA Championships: 1999, 2003, 05, 07, 14
  • 2 NBA MVPs: 2002, 2003; 3 Finals MVPs: 1999, 2003, 05
  • 15× All-Star
  • Retired 2016 (19 seasons — all with Spurs)
  • Spurs assistant coach: 2019-2020

What the Duncan Family Story Teaches Us

A mason father. A swimmer-midwife mother lost to breast cancer at 14. Two elder Olympic-swimmer sisters. A first marriage that ended in 2013. Three children. A career that produced 5 titles across 3 decades.

For every family — large or small, famous or otherwise — the Duncan story carries the same lesson. Some careers stay 19 years at one franchise.

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