Thomas De Umfreville
Thomas was born in 1364 in Castle Harbottle, Northumberland, England.  He died at the age of 27 on February 12th, 1391 in England.

 UNKNOWN Agnes
UNKNOWN was born in 1365 in Northumberland, England.  She died at the age of 55 on October 25th, 1420.

 Elizabeth De Umfreville
Elizabeth was born about 1385.

 Maud De Umfreville
Maud was born about 1386.

 Joanne De Umfreville
Joanne was born about 1387 in Castle Harbottle, Northumberland, England.  She died after 1449.

 Agnes De Umfreville
Agnes was born about 1389.

 Gilbert De Umfreville
Gilbert was born on October 18th, 1390.