Good news! I did a search on Ancestry.com in the birth, marriage, and death records for Robert Hall, born in 1775, and Elizabeth Miller in Liverpool, Lancashire, England and I was able to find a marriage record that may be theirs. It says they were married on 1 Sept. 1800 in the Trinity Church in Liverpool. [1]
One interesting piece of information this record gives us is that Robert was a cordwainer. They listed the occupation directly after the parish name. At first I thought it said "Cordwainn" and I thought perhaps that it was part of the name of the parish. Then I noticed it said "spinster" for Elizabeth and I realized "Cordwainn" was actually "cordwainer". According to Wikipedia, a cordwainer is a shoemaker.[2] This is a lead that may help me verify Robert's father if he learned the trade from his father. I plan on researching more on the occupation of cordwainers. Perhaps there was a guild in Liverpool to which Robert or Robert's father was a member.
1. Trinity Church. Ancestry.com, Liverpool, England, Baptisms, Marriages and Burials, 1659-1812, accessed 25 January 2013.
2. Wikipedia.com, http://en.wikipedia.org/wiki/Cordwainer, accessed 25 January 2013.