▁Mary ' s ▁death ▁in ▁the ▁s inking ▁of ▁the ▁L us it ania . ▁Mary ▁was ▁the ▁daughter ▁of ▁John ▁Stevens ▁( 1 8 5 6 – 1 8 9 5 ), ▁oldest ▁son ▁of ▁Stevens ▁Institute ▁of ▁Technology ▁founder ▁Ed win ▁August us ▁Stevens ▁and ▁grand son ▁of ▁invent or ▁John ▁Stevens , ▁and ▁Mary ▁Marshall ▁Mc Gu ire ▁( 1 8 5 0 – 1 9 0 5 ). ▁The ▁Hamm onds ▁settled ▁in ▁a ▁forty - se ven - room ▁m ansion ▁in ▁Bern ards ville ▁in ▁ 1 9 0 8 . ▁ ▁Hamm ond ▁and ▁his ▁first ▁wife ▁had ▁three ▁children : ▁▁▁ ▁Mary ▁Stevens ▁Hamm ond ▁( 1 9 0 8 – 1 9 5 8 ), ▁who ▁married ▁Count ▁Guer ino ▁Ro ber ti ▁and ▁was ▁there after ▁known ▁as ▁Count ess ▁Ro ber ti . ▁ ▁Mill ic ent ▁Vern on ▁Hamm ond ▁( 1 9 1 0 – 1 9 9 2 ), ▁who ▁served ▁in ▁the ▁U . S . ▁House ▁of ▁Representatives ▁and ▁married ▁Hugh ▁Mc Le od ▁Fen wick ▁( 1 9 0 5 – 1 9 9 1 ) ▁in ▁ 1 9 3 1 . ▁ ▁Og den ▁H . ▁Hamm ond , ▁Jr . ▁( 1 9 1 2 – 1 9 7 6 ), ▁who ▁married ▁Mars yl ▁Sto kes . ▁ ▁On ▁December ▁ 1 8 , ▁ 1 9 1 7 , ▁Hamm ond ▁rem ar ried , ▁to ▁Mar guer ite ▁" D