Notwithstanding the provisions of Kan. Stat. Ann. §§ 74-4913 to the contrary, any county employee who first became a member of the Kansas public employees retirement system on January 1, 1968, the county’s entry date, and who was first employed by said county on January 13, 1941, to January 8, 1945, and reemployed January 8, 1951, to January 7, 1957, and who was again reemployed on January 9, 1967, and who was employed by one or more participating employers or their predecessors whose entry date is January 1, 1971, periodically from September 3, 1928, through April 19, 1935, shall receive service credit for all such employment prior to January 1, 1968, with all such participating employers whether continuous or not.