The family of Kevin Campbell, 57, of Jefferson, will host a Celebration of Life for friends and family beginning at 5 pm Friday, at the Spring Lake Park at the lake-side shelter house.  Memorials are suggested to the family.  Visitation will be Thursday from 5 pm to 7 pm at the Slininger-Rossow Funeral Home in Jefferson.  Survivors include:  Children:  Cassie Fowler of Jefferson and Ben Campbell of Rippey.  5 grandchildren.  Sister, Kim Brant of Jefferson.  Brother, Floyd Latta of Cedar Rapids.