James Staats Forbes was a railway manager and collector. His brother was probably William Forbes, also a railway manager and engineer. They were the sons of William Forbes, General Manager of the Midland Western Railway of Ireland. William married Louise Tronche in 1902.
William Forbes was educated at King's College, Dulwich and in Germany and France. He became the General Manager of the London, Brighton and South Coast Railway; He was a Lieut.-Colonel, an Engineer and on the Railway Staff Corps.
He was awarded many honours and was made an officer of the Légion d'Honneur, and became Sir William in 1915.