Lapraik married 28 year old Julia Hearn, a daughter of the lord of Carisbrooke Castle, in November 1866.
The couple had no children and Lapraik died in March 1969.
After Lapraik's death, his nephew, John Steward Lapraik founded the Douglas Steamship Company in 1883 which continued to run Lapraik's steamer business and which also took up management of other assets owned by Douglas Lapraik & Company.

In 1867, Jane Lapraik, Lapraik's niece and sister of John Steward Lapraik was married in Hong Kong to Robert Ellis Baker.
John Steward Lapraik continued his uncle's business activities in Hong Kong until his death in 1893, having two children named John Douglas Lapraik (1866) and Thomas Steward Lapraik (1867) who also continued in the business.
Lapraik married 28 year old Julia Hearn, a daughter of the lord of Carisbrooke Castle, in November 1866. The couple had no children and Lapraik died in March 1969. After Lapraik's death, his nephew, John Steward Lapraik founded the Douglas Steamship Company in 1883 which continued to run Lapraik's steamer business and which also took up management of other assets owned by Douglas Lapraik & Company.
In 1867, Jane Lapraik, Lapraik's niece and sister of John Steward Lapraik was married in Hong Kong to Robert Ellis Baker. John Steward Lapraik continued his uncle's business activities in Hong Kong until his death in 1893, having two children named John Douglas Lapraik (1866) and Thomas Steward Lapraik (1867) who also continued in the business.
Douglas Lapraik