The Monongalia County (West Virginia) Even Start Program is a comprehensive, rural, home-based family literacy program that provides families with adult literacy education, parenting education, and early childhood education. Although all Even Start programs conduct some home visits, the Monongalia County program is unique in that home visits are the primary service delivery mechanism. Following an overview of the national Even Start program and the Monongalia County program, this report describes an evaluation of program impact on the vocabulary development of child participants. The sample consisted of 32 children with an average age of 4 years, 4 months, and included 5 children for whom English was a second language (ESL) and 10 children with an active individualized education plan (IEP). Even Start staff administered the Peabody Picture Vocabulary Test-III (PPVT-III) to the children on a pretest-posttest basis during the 1998-99 program year. Most children had 7-8 months of program participation. From pretest to posttest, PPVT-III scores increased significantly for the full group and the subgroups. The effect size of the point gain was "moderate" for the full group, "large" for the ESL group, and "very large" for the IEP group. The PPVT-III average age-equivalent score increased 13 months during an average treatment period of 7 months. Therefore, the children in the sample nearly doubled the vocabulary growth expected of them. (Contains 20 references.) (SV)