Why are specific marriage dates difficult to confirm for Frank Whittle?

Answer

Biographical fragments about his personal life are scattered and sparse

The difficulty in mapping a definitive timeline for Frank Whittle's marriages arises because biographical notes on his personal life are fragmented and disconnected. While his professional milestones—such as contract dates and patent applications—are meticulously recorded, the private details of his life were not preserved with the same level of rigorous historical documentation, making it challenging for researchers to pinpoint exact dates for weddings or divorces.

Why are specific marriage dates difficult to confirm for Frank Whittle?
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