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Thanks Dot. On the first post, both the baptism and marriage were from the actual registers in Kent CRO - I'm here now! I also double checked them on the Bishops transcripts and they checked out OK. On the second, I agree Mary is more sense than Ann.
I suspect Alphry and Ann are the same person. But as there's a chance there were 2 John Baldwin's in the area, and Alphry really is Mary, I'm disinclined to make that assumption until I'm absolutely sure.
Thanks again for your assistance, anything else will help. However, I'm leaving Kent CRO now, so won't be able to reply again till later on tonight.