Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_2668336_19 (incumbent VARCHAR, result VARCHAR, first_elected VARCHAR)
### Question:
Who were the incumbent(s) when the result was a retired democratic-republican hold and the first elected representative was in 1816>
### Answer:
SELECT incumbent FROM table_2668336_19 WHERE result = "Retired Democratic-Republican hold" AND first_elected = "1816"