Following his death, his body was returned to Washington DC on the  and was laid in state at the White House on December 16; he was subsequently buried in New York City. In a letter to his wife shortly after Gennerich's death, Franklin Roosevelt wrote "Good old Gus was the kind of loyal friend who simply cannot be replaced".
Following his demise, his body was transported to Washington DC on the  and was placed in a public display at the White House on December 16; he was subsequently interred in New York City. In a letter to his wife shortly after Gennerich's passing, Franklin Roosevelt penned "Good old Gus was the kind of devoted companion who simply cannot be replaced".