It appears that Edward Rodda is the one in Gwinear, Cornwall. He married a Phillis, children Jane Edward 1836, Edward 1838, John 1840. They lived at Reawla. A reading of the 1841 census would also contain this family.
Matthew Rodda and Elizabeth John md 1816 Gwinear, had three of their children chr in 1833.. Edward- 26 Feb Richard - 26 Feb and Edward 14 April 1833. There is a burial of Edward 14 Ap 1833 age 4. So assume that this is the same group you have listed.