The town was known as Bangaloe until 1907, when the modern spelling came into use.

It appears in its modern spelling on a 1575 map by Saxton.

The modern spelling occurs in 1094, 1176, 1196, 1212 and 1332.

The name underwent a number of changes until it assumed its modern spelling.

The modern spelling appears to be a corruption of an earlier form Llygadyw.

The modern spelling of the name was only decided upon in 1938.

The names are given their modern spelling according to Morison (1966).

The station was named after a nearby farm, the modern spelling of which is Williamston.

The modern spelling appears to date from the 18th century.

Reproduced from the first edition, but adjusted to modern spelling.