found:Exploring Oxford Bus Company country, 2007:p.7 (est. 1921 as City of Oxford Motor Services; in 1971, the South Midland coach fleet came under City of Oxford Motor Services control and the company's name became Oxford-South Midland)
found:Wikipedia WWW site, 2 Nov. 2007(est. 1906 as the City of Oxford Electric Tramway Company Ltd.; in 1921, re-named as City of Oxford Motor Services; became a National Bus Company subsidiary in 1969; in 1971, the South Midland coach fleet came under City of Oxford [Motor Services] control and the company's name became Oxford South Midland; in 1983 the operation was split into separate Oxford and South Midland units; Oxford Bus Company is a bus operator serving the city and surrounding area of Oxford, England and is the trading name of City of Oxford Motor Services Ltd.; OBC is now a subsidiary of the Go-Ahead Group)