Early this year I started a One name study for my maiden name of Langridge. I have 3 variations of the spelling so far in my family tree. There are others here on wikitree:
There are About 295 LANGRIDGEs. Related surnames: LONGRIDGE (44) LONGRIGG (39) LANGRILL (13)
So far I have discovered the name in various English counties, Australia, New Zealand and the USA
https://www.wikitree.com/wiki/Category:Langridge_Name_Study
The one in Ceylon is my sister but she was born on English Crown Land
If you interested in joining the study please just let me know