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The introduction is concise and to the point, I wouldn't change it unless there are other significant things about the church that people should definitely know if they skimmed the page.
Using context clues I was able to discern what PC(USA) meant but I think you should write out Presbyterian Church (USA) because it could be seen as jargon. (Although I'm sure the vast majority of people who visit this page would understand, it still helps with clarity) :)
Good job with the citations, almost all claims are supported by (which I assume are all) secondary sources and most of the ones that aren't I doubt need them.
There are only two areas where I think references should be added, which are: 2nd sentence beginning with "Prairie Village was..." in the history section and the 2nd sentence in the Membership section beginning with "Located on the edge...".
It seems fine to me but I can see someone thinking the page's Community Involvement section is lacking so before you turn in your final with this page I would expand each of the community involvement programs subsections to 4-5 sentences each.
Sentences are well-written and flow between each other. They never feel "formulaic". I don't see any areas where someone may get confused.
Overall this is a good rough draft and I think if you just refined/expanded on what is existing this would be a solid page.