Funeral services for 77 year old Dr. David J. Graber of Kalona are 10:00 Monday at the Kalona Mennonite Church.  Burial will be in the Sharon Hill Cemetery.  Visitation will begin at 10:00 Sunday at the Yoder-Powell Funeral Home in Kalona where the family will greet friends from 1:00 to 4:00 and from 6:00 to 8:00.  A memorial fund has been established for Youth for Christ.