The following is a direct extract from page 185 of Gough, John: "The Midland Railway - A Chronology", 2nd edition, published by The Railway and Canal Historical Society (1989):

"Culgaith Station SB: Opened c.1.1880 // Re-framed: 20.9.1896 // Replacement box: Opened 4.10.1908 // Closed [no date given]"

Location Reference(s): 
SCRCA Structure 284670: Culgaith Signal Box (1908 - present)