Final answer:
Without proper context or a specific work being referenced, it's impossible to determine where 'Wilbur' lost his first life or to whom. The provided excerpts metaphorically discuss concepts of loss and failure, which seem related to the themes of the question but do not give specifics about 'Wilbur'.
Step-by-step explanation:
The question revolves around the notion of loss, mortality, and the human condition as depicted in literature. It is not clear which work or character is being referred to as Wilbur; this could be a reference to a character from a book, but without a specific context, it is impossible to give a definitive answer. From the given excerpts, the notion of losing one's life is metaphorically represented. The first excerpt speaks of 'the victory' lost after a trial day, indicating a metaphorical death or failure. The second talks about the loss of a woman's life due to the removal of a birthmark, and her husband's realization of his mistake too late, which can be seen as an allegory for the loss of innocence or purity.