Eldest son
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In 1745 William Tremenheere was the sole executor of his father's will.
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Mr. William Tremenheere, Attorney, at Penzance (burial record)
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"In the vault of his ancestors in the middle aisle of this church lies interred William Tremenheere, Esquire, an eminent attorney. A friendly father and an affectionate husband, who died on the 14th day of June, A.D. 1780; aged 48 years.
Also with him Catherine his wife, a most amiable woman, a kind mother, and an affectionate wife, who died on the 12th day of October, A.D. 1812; aged 79 years. A daughter of the Revd. Walter Borlase, LL.D., of Castle Horneck.
This tablet to the memory of his parents as a tribute of filial respect, regard, and affection, is dedicated by their eldest son William, A,M., and vicar of Madron." 3
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William Tremenheere of Penzance left a will, proved in 1780. 4