On 31 Aug 1801 [his mother] Jacintha Catherine Hesketh (age 25) died.

In 1815 [his grandfather] John Lethbridge 1st Baronet (age 69) died. His son [his father] Thomas Buckler Lethbridge 2nd Baronet (age 36) succeeded 2nd Baronet Lethbridge of Westaway House in Devon and Winkley Court in Somerset. He was buried at Church of St Mary the Virgin, Pilton [Map] where there is a ledger stone inscribed as follows:

Here lyeth ye body of Phillip Bowchier, Gent., buried ye 3d day of Agust 1687 aged 64 years. Here also layeth the body of Agnes late wife of Phillip Bowchier, Gent., who departed this life ye 25th day of Nobr 1698 aged 66. Here lyes also buryed the body of Thomas Lethbridge, Gent., son of Thomas Lethbridge of Clement's Inne, Gent., a younger son of Christopher Lethbridge of Westaway, Esq., by Margaret his wife daughter of the above named Philip Bowchier. Obt 10th Augst 1744 aetatis 20"

On 13 Mar 1826 [his wife] Harriet Rebecca Mytton (age 27) died.

On 29 Mar 1834 [his former brother-in-law] John "Mad Jack" Mytton (age 37) died in King's Bench Prison [Map].

On 17 Oct 1849 [his father] Thomas Buckler Lethbridge 2nd Baronet (age 71) died. His son John Hesketh Lethbridge 3rd Baronet (age 51) succeeded 3rd Baronet Lethbridge of Westaway House in Devon and Winkley Court in Somerset.

In 1873 John Hesketh Lethbridge 3rd Baronet (age 75) died. His son [his son] Wroth Acland Lethbridge 4th Baronet (age 41) succeeded 4th Baronet Lethbridge of Westaway House in Devon and Winkley Court in Somerset.