[1][2] Beaudry acquired the Slate Range Gold and Silver Mining Company at a bargain price when the failed Mojave Desert firm found itself unable to pay for goods purchased from Beaudry's store, though his investment failed when the mining enterprise was destroyed by fire set by disgruntled Californian Indian tribe member workers.

He owned a great deal of real estate in Downtown Los Angeles, located for the most part around Temple Street, Bunker Hill, Bellevue Road, and in the Angelino Heights and Arcadia areas.

[1][2] He died on May 29, 1893,[5] in Los Angeles, but was entombed at the Notre Dame des Neiges Cemetery in Montreal.

Los Angeles County praised Beaudry in these words: Prudent Beaudry has the record of having made in different lines five large fortunes, four of which, through the act of God, or by the duplicity of man, in whom he had trusted, have been lost; but even then he was not discouraged, but faced the world, even at an advanced age, like a lion at bay, and his reward he now enjoys in the shape of a large and assured fortune.

To such men we of this later day owe much of the beauty and comfort that surround us, and to such we should look with admiration as models upon which to form rules of action in trying times.