Bob, who died in 1993, spent over 20 years in the pioneer work, which included 10 precious years pioneering along with his wife, Doll.
Bob, kes suri 1993. aastal, tegi üle 20 aasta pioneeritööd, sealhulgas oli ta kümme väärtuslikku aastat koos oma naise Dolliga pioneerteenistuses.