billion US$ Source of wealth Age 1: Elon Musk: 263: Tesla, SpaceX: 50 2: Jeff Bezos: 195.9: ...
https://www.investopedia.com/articles/investing/012715/5-richest-people-world.asp
Walton Family Worth: $247 billion Change: UP Origin of Wealth: Walmart
https://www.therichest.com/lifestyles/richest-family-dynasties-american-history/
Who owns the biggest farm in Texas? Waggoner Ranch - 535,000 acres. O'Connor Family Ranches - 500,000 acres. ... Hughes Ranch - 390,000 acres. ... Longfellow Ranch - 350,000 acres. ... Nunley Brothers - 301,500 acres. ... Kokernot Heirs (06 Ranch) - 278,000 acres. ... The Four Sixes Ranch - 275,000 acres. ... Jones Family Ranch - 255,000 acres. ...
https://questionstoknow.com/who-is-the-richest-family-in-texas
Who Is The Top 20 Richest Man In The World 2020? Elon R Musk $218.3 Tesla/ United States Bernard Arnault & family $188.6 LVMH/ France Jeff Bezos $165.5 Amazon/ United States Bill Gates
https://www.foxbusiness.com/economy/top-5-richest-americans-forbes-400-list-who-are-they
doc for "400 richest families in america".(Page 1 of about 18 results)