On 28 Apr 1865 Samuel Cunard 1st Baronet (age 77) died. His son Edward Cunard 2nd Baronet (age 49) succeeded 2nd Baronet Cunard of Bush Hill in Middlesex.

In 1869 Edward Cunard 2nd Baronet (age 53) died. His son Bache Cunard 3rd Baronet (age 18) succeeded 3rd Baronet Cunard of Bush Hill in Middlesex.

In 1925 Bache Cunard 3rd Baronet (age 74) died. His brother Gordon Cunard 4th Baronet (age 68) succeeded 4th Baronet Cunard of Bush Hill in Middlesex. Edith Howard Lady Cunard by marriage Lady Cunard of Bush Hill in Middlesex.

In 1933 Gordon Cunard 4th Baronet (age 76) died. His son Edward Cunard 5th Baronet (age 42) succeeded 5th Baronet Cunard of Bush Hill in Middlesex.

In 1962 Edward Cunard 5th Baronet (age 71) died. His second cousin once removed Henry Palmer Cunard 6th Baronet (age 52) succeeded 6th Baronet Cunard of Bush Hill in Middlesex.

In 1973 Henry Palmer Cunard 6th Baronet (age 63) died. His brother Guy Cunard 7th Baronet (age 61) succeeded 7th Baronet Cunard of Bush Hill in Middlesex.

In 1989 Guy Cunard 7th Baronet (age 77) died. Baronet Cunard of Bush Hill in Middlesex extinct.