Marvolo Gaunt
He died in 1927.

 <Unknown>

 Morphin Gaunt
Morphin was born in 1900.  He died at the age of 70 in 1970.

 Merope Gaunt (Riddle)
Merope was born in 1907.  She died at the age of 19 on December 31st, 1926.

• Death Notes

  Died one hour after giving birth to Tom.