Name the number of candidates for  samuel d. ingham
CREATE TABLE table_2668347_17 (candidates VARCHAR, incumbent VARCHAR)
SELECT COUNT(candidates) FROM table_2668347_17 WHERE incumbent = "Samuel D. Ingham"
### Context: CREATE TABLE table_2668347_17 (candidates VARCHAR, incumbent VARCHAR) ### Question: Name the number of candidates for  samuel d. ingham ### Answer: SELECT COUNT(candidates) FROM table_2668347_17 WHERE incumbent = "Samuel D. Ingham"