Vernon Deloss Walker (August 14, 1931 April 19, 1996) was a notable advertising executive and political campaign consultant. Walker founded the Memphis, Tennessee-based advertising firm Walker + Associates, Inc. in October 1965. Walker played a major role in politics, corporate marketing and philanthropy throughout the South from the 1960s to 1990s.

Based on that paragraph can we conclude that this sentence is true?
Vernon Deloss Walker had 3 children.
It's impossible to say