It's a "epilogue from the re-release of "Golden Bears," a history of Cal football by Ron Fimrite, which will be available in September."
The excerpt is a family reenactment of the Play.
Re-release? Has this been published before? Yes, and it was reviewed by CGB in "2010":http://www.californiagoldenblogs.com/2010/5/5/1455264/golden-reviews-ron-fimrites-golden
Read more: http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2012/06/16/SPRD1P37LK.DTL#ixzz1y9TGKubO