Credit to Sin_Vraal on IRC for most of this solve.
Use each digit of the dates given to pick the corresponding letter from ship/plane name.
i.e. the first one is 1872 The Mary Celeste. The 1st, 8th, 7th and 2nd letters are TCYH.
The following is the result
At 4:15 in the video, we are given a clue. Green flares launch up one at a time from one of four different positions.
This tells us which letter to pick from each group of four. This gives CRYSTAL DR.
Dr. Charles Brown found a crystal while scuba diving in the Bahamas.
Answer is Charles Brown
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