Henry Millidge was born in Coventry, England on 2nd April 1891 to John Millidge and his wife Ann Selina (nee Clarke). His grandparents, Henry and Caroline Millidge had moved from London to Coventry soon after his father was born. He was christened at St Peter’s Church in Coventry on 2nd September 1891. On the 1911 census his address is 33, Kingsway, Coventry and his occupation given as Engineering Draughtsman. Later that year he joined the Warwickshire Yeomanry.
On 12th November 1914he married Ethel Mary Spencer and gave his address as 42, West Stree, Warwick. The marriage was witnessed by Arthur Sheffield and Irene Bertha Smith. His occupation was Engineer. Henry and Ethel had 2 children.
By 1921 he had moved to London and joined the D’Oyly Carte Opera company and performed that year in the Gonoliers, Pirates of Penzance and Princess Ida.
In 1922 he played Sir Joseph Porter in H.M.S. Pinafore and was also in The Mikado.
In 1924 he played counsel in Trial by Jury.
1925 saw him as Pish Tush in the Mikado, Boatswain in H.M.S. Pinafore and Strephon in Iolanthe. in 1928 he was 2nd Yeoman in Yeoman of the Guard. By this time he was living in Hampstead, London.
In 1930 he was in the Damask rose at the Savoy Theatre, London.
His last appearance on the London stage was at the Coliseum, London in 1936.
He died on 2nd December 1959.