Sylvia Bradding, Michelle Carter, Maureen Grainger and Karen Land have a combined total of 121 years service at the law firm.
Sylvia started with the law firm in 1975, but left in 1980 before returning in 1988. Michelle started in 1974 before leaving in 1980 and returning in 1990. Maureen began her tenure in 1967 before leaving in 1973 and returning in 1992. The longest serving out of the four ladies is Karen, who began her tenure in 1978, with no break in service.
As well as the 121st anniversary of its establishment, the law firm is also celebrating its diamond anniversary at its Priestgate site in Darlington, having moved to the office 60 years ago.
Anne Elliott, Marketing Partner of Latimer Hinks, said: "It truly is amazing that Latimer Hinks has been established for more than a century and the ladies combined service ties in perfectly with our celebrations.
"It really is fantastic that Sylvia, Michelle, Maureen and Karen have all spent the majority of their working lives with the firm, which just goes to show how loyal and dedicated these ladies are to the firm.
"We believe that Latimer Hinks success comes from our friendly service, reinforced by the strength of our dedicated colleagues. The fact that our office has been located at Priestgate for six decades is a testament to our strong connections in the local business community."