The celebration of Mark Niver's life will take place Friday, July 30, at 7 p.m. at Scottsdale Airpark, 15100 N. 78th Way, Scottsdale, AZ 85260. In lieu of flowers, the family requests that donations be made to Racers For Christ (P.O. Box 1208, Gilbert, AZ 85299-1208) or The Phoenix Rescue Mission (P.O. Box 63005, Phoenix, AZ 85082-3005).