"Tew Heritage" needs updating

In 1990, a softback publication entitled "Tew Heritage" was printed by Stevenson's Genealogy Center, Provo, Utah, USA. It is, as the cover shows, "A tribute to William Thomas Tew and Clara Elizabeth Snow, their descendents, and pioneer ancestors." Their pictures shown above. The editors of this publication were three of their grandchildren, namely Merlene Tew Colarusso, Clara Allred Smith, and Helen Tew Stirland. Merlene passed away in 1999 (age 85) and Clara passed away only a month ago (age 88). As far as I know, Helen is alive and well, though she is getting along in years too (age 90). I am also a grandchild of William and Clara, and am 1st cousin to Merlene, Clara, and Helen. At age 60, I am the youngest living grandchild. Merlene was the oldest. William and Clara had seven children who grew to adulthood, 44 grandchildren, and as of 1990, had a total of 671 direct descendents. In the last 18 years, the numbers of great grandchildren and beyond have increased greatly. As the youngest, and one of the last of the old guard, I have decided to take on the task of updating the Tew Heritage, and making the information electronically available. We'll soon see whether I am way over my head on this project or not. It will obviously require considerable cooperation from extended family members.