Hi Karen,
Looking at the given Baxter names, these Frodsham baptisms may be useful.
Catherine Baxter 19/10/1794
Martha Baxter 19/1/1780 or 1781
Robert Baxter 23/9/1781
They are all children of Robert Baxter/Martha - possible Frodsham marriage 20/11/1776 Robert Baxter & Martha Norcott.
It maybe unrelated, but on my tree I have an 1853 Frodsham marriage for Martha Norcott (1821) & Samuel Fletcher (1812). Their son Samuel Fletcher married Mary Augusta Jenkins in 1879 Frodsham. Mary Augusta is the daughter of our relative Robert Jenkins (1832 & Mary Snelson (1834)
There are a number of Baxter families in the Alvanley area - pretty close to Frodsham.
I came across this as well - Robert Baxter of Alvanley married Ann Morrow on 26/8/1752 Frodsham. There is a possible Frodsham baptism 26/8/1755 for a Robert Baxter, son of Robert & Ann Baxter.
Apologies if you already know this.
All good wishes,
Philip Jenkins