Potential sources

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  • Orlando, Joe (2008-12-01). Collecting Sports Legends: The Ultimate Hobby Guide. Zyrus Press. pp. 135–. ISBN 9781933990217. Retrieved 1 February 2014.
  • "Boys' Life". Boy Scouts of America, Inc. 1993-12. pp. 18–. Retrieved 1 February 2014. {{cite magazine}}: |article= ignored (help); Check date values in: |date= (help); Cite magazine requires |magazine= (help)
  • Laroche, Stephen; Waldman, Jon (2011-04-01). Got 'Em, Got 'Em, Need 'Em: A Fan's Guide to Collecting the Top 100 Sports Cards of All Time. ECW Press. ISBN 9781554909711. Retrieved 1 February 2014.
  • Kun, Michael; Hoff, Adam (2013-10-09). Football Uncyclopedia: A Highly Opinionated Myth-Busting Guide to America's Most Popular Game. Clerisy Press. pp. 41–. ISBN 9781578603114. Retrieved 1 February 2014.
  • O'Connell, T.S. (2010-11-11). Classic Sports Card Sets: Best Sport Cards Sets From the 1950s and 1960s. Krause Publications. pp. 57–. ISBN 9781440216664. Retrieved 1 February 2014.