Popular early to mid-19th century American religious hymns?

For the past six months I have been purchasing early to mid-19th century American hymnals to arrange hymns selected from them for performances at Civil War re-enactment church services. As of today, I have arranged 63 hymns which are far more than the ensemble will need for any one church service. My concern though is that I may have overlooked some major hymns that were very popular in the time period leading up to the 1860s.

I have amassed a rather large collection of early to mid-19th century hymnals. I'm needing titles of the most popular hymns from this era leading up to the American Civil War.

Would any religious music expert that uses Yahoo Answers provide me with what you consider to be the essential early to mid-19th century hymns sung by American congregations? I am not interested in the stories behind the creation of the hymns nor am I interested in hymns written after 1865. In most cases I will be able to locate the printed music in the many hymnals that I own or on-line.

Thank you for your help.