Lewis Clark Early Childhood Program Share: EducationCommunity Organizations Lewis Clark Early Childhood Program Visit Website 1816 18th Avenue Lewiston, ID 83501 (208) 743-6573 (866) 965-2327 (208) 750-1489 (fax) About About Private, non-profit organization serving southeastern WA and north central ID. Our purpose is to provide early childhood education and family support services for limited income families.