sentences:  During the 1840 election for President, Eaton was a delegate to a convention of former Democratic-Republicans who endorsed Whig nominees William Henry Harrison and John Tyler.In 1841 he was a member of the reception committee for a large gathering in New York City which honored Nathaniel P. Tallmadge following his return to the United States Senate after having switched from the Democratic Party to the Whigs.In the early 1840s he served as a Special Agent of the United States Post Office Department, ensuring that postmasters and mail carriers did not use the service for illegal purposes.