I have a descendancy chart for the Moores of Ballaberna in Maughold. It shows
both Robert's.

Robert (b. 22 Aug 1819) is listed as the heir of Ballaberna,
wife Isabella Corkill. Children Isabella, Ann Jane, John, George, Emma, Edward,
Frederick, Joseph, Sarah, James Alfred, William Henry, Daniel, Robert, Thomas,
and Frederick John (wow). His parents are listed as Emmanuel (b. 1790 d. 1851)
and Anne Kennish Tear (b.1793 d. 1876)

The other Robert's line (b. 21 Mar 1819) does not go any farther than him.
Possible wife and children are not listed. His father Robert (b. 1792) was
a cousin of Emmanuel.