Brent Darel Sievers, 27, was last seen October 15, 1971, in Los Angeles. He had been traveling in Europe and Africa and last contacted family by a letter from the Cape Verde Islands. In that letter he said he planned to sail to Barbados and then Miami aboard a 23-foot vessel called Hobo with the boat owner.

The boat owner later returned to the U.S. and reported dropping Sievers off in Africa, but no further details about Sievers’ whereabouts or fate have been uncovered. Sievers remains officially missing and the case is unresolved.

If anyone knew Brent, sailed on Hobo, or has information about his travels in the Cape Verde Islands or Africa in 1971, please share what is known.