HOLLAND — Right to Life of Holland will host its annual March for Life on Saturday, an event that marks the anniversary of the Jan. 22, 1973, Supreme Court decision that legalized abortion in the U.S.The walk around Centennial Park memorializes the lives lost in abortions, organizers said, and will end in a prayer service for the unborn at Central Avenue Christian Reformed Church."We walk to mark the anniversary and mourn the loss of 60 million unborn babies and show support for the