Funeral services for Gregory Wallace, 39, of Urbandale, formerly of Greenfield, will be Thursday at 10:30 am at the United Methodist Church in Greenfield.  Burial will be in the Greenfield Cemetery.  A luncheon will be held at the church following the services.  Visitation will be Wednesday from 4 pm to 8 pm at the church.  Family will be present from 6 pm to 8 pm.  Memorials may be left for the University of Iowa Children’s Hospital or the Animal Rescue League.  Steen Funeral Home in Greenfield is assisting the family.  Online condolences may be left at steenfunerals.com.  Survivors include:  Parents, Doug and Jenice Wallace of Greenfield.  Sister, Gina School of Greenfield.  Grandmother, Mary Wallace of Greenfield.