Roswell Merrill

Search for info on Roswell Merrill born abt 1816 in Vermont His wifes name was Harriet Burnham 1821-1897 their children were Edward-brn 1845 Rush-brn 1848 Died 1902 David brn 1852 died 1930 & Don Juan brn 1857 Died 1929. Havent been able to find any info on his family. There are other Roswell Merrills born 1801 & in late 1700's but no relation... Anyone have any info on this line of Merrills? Rush married and had 2 sons Charles and Frank I have info on them and families but cant find out abt the past.

Thank you Crystal