OSG Law Firm History
Martin Gillibrand
01524 846846
David Gillibrand
01524 846846


Generations of legal expertise in Lancaster
As one of the oldest traditional legal practices in Lancaster, Oglethorpe, Sturton & Gillibrand can boast a century of expertise at Castle Park.
But the firm, an amalgamation of two long-standing general practice lawyers can actually trace its roots back to 1810 – an impressive 201 years of legal experience.
In 1968 the merger between Sturton, Son and Gillibrand and Clark Oglethorpe saw the formation of the partnership between John Gillibrand and Geoffrey Oglethorpe and his son, Philip.
In 1972 John’s eldest son, Martin, joined the practice from international law firm Allen and Overy, one of the top five commercial legal enterprises in the UK.
He developed the highly successful agricultural and moorland side of the practice the business enjoys today, working for some highly prestigious clients. Martin is nationally acknowledged as an expert in the field of agricultural and farming law.
John Gillibrand saw the arrival of his son, David, at the practice, again from Allen and Overy, in 1982 before he retired to Yorkshire in 1988. David is now Managing Partner and, with his strong commercial background, has developed the practice’s corporate and commercial legal work.

Philip Oglethorpe retired in 2006. He still lives in the City and is a stalwart of Lancaster Golf Club and secretary of the Lancaster Charities and Ripley Trusts, with which Oglethorpe, Sturton and Gillibrand have been involved since their foundation.
In recent years the practice has grown substantially from five fee earners to 20 lawyers. It has acted for individuals and families for literally generations but has never forgotten its roots.