Simply one of Boro's greatest sons, Shepherdson greatest contribution to the game was off the pitch - for both club and country.
As a commanding centre-half, he earned respect with some competent performances on the occasions where he stepped in for Bob Baxter. On one of those outings he did a fine job marking Everton's striker Dixie Dean.
As an Army staff sergeant PT instructor in World War Two, he learned about physiology, while still managing the odd game for Boro.
After just 17 games for the club he joined Southend but never played, and a knee injury suffered on a FA coaching course at Birmingham University forced his retirement at just 28.
A call to Boro's trainer Charlie Cole landed him the job of assistant trainer, allowing him to put into practice the health and fitness expertise he learned during the war. Cole retired in 1948 and Shep replaced his successor Tom Mayson in 1949.
His work impressed England officials and in 1957 he became the national's team trainer - the beginning of a remarkable period covering four World Cups and 169 internationals. England's longest-serving trainer by a mile, he was awarded an MBE in 1969.
Yet despite all the international action, he never turned his back on the Boro and was made assistant manager under Stan Anderson, a job he held into the Eighties as managers came and went. He was also caretaker boss at Boro on four occasions and had several offers from other clubs, but he always wanted to stay on Teesside.
He was also happy to keep out of the manager's chair, preferring to get on with his own job.
Shepherdson retired in 1983 after nearly half a decade with Boro, before leaving as part of a cost-cutting exercise. Not that Shep was one to make a fuss - his nature, light touch and easy humour made him one of football's true gentlemen.
A true Boro legend, he died of a heart attack in September 1995. Four years later, his widow Peggy auctioned off some of his memorabilia, including Booby Moore's World Cup final shirt.
In June 2009 his family were presented with a World Cup winners' medal in his memory by Prime Minister Gordon Brown. His name lives on at the Riverside Stadium, where Shepherdson Way was named in his honour.