First nonelected man to fill the office of president

Only Gerald Ford was never successfully elected as either President or Vice President, though he served in both positions.

Explanation:

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John Tyler

Explanation:

In April 1841, John Tyler became the first person to succeed to the presidency intra-term upon the death of William Henry Harrison

the option which was not a function of missionaries in the northwest was the first one - they established posts for trading furs and other goods.

missionaries were sent around the world to spread religion and their knowledge and others - they were not merchants who sold furs and other goods.