Annie Younger was the only child of Mr John Thomson Paton of Paton & Sons, Alloa, who presented the Public Baths and Gymnasium (now The Speirs Centre), the Town Hall and Library to the town of Alloa. Annie married Dr James Younger of Mount Melville on 18 February 1886, and, on coming to Mount Melville, they lived first at Denork. From 1903 they lived in Mount Melville House near St Andrews, owned by the Younger family - the famous brewers.
Many good causes in East Fife benefited from Dr and Mrs Younger's generosity. Deeply interested in the Episcopal Church, she was responsible for the completion of All Saints' Church in the 1920s and the Rectory of the Church completed in 1939. To make way for the new buildings connected with All Saints' Church, a number of houses in North Street and North Castle Street belonging to the old fishing population had to be demoloshed or reconstructed. Mrs Younger built the block of houses on the Scores known as "St Gregory's" to accommodate the disposed tenants. This is a particularly attractive block of houses and is a good example of Mrs Younger's fine artistic taste. The houses were built on the site of William Blyth's foundry, and most of those who had to move there were delighted with their new homes.
As well as providing for the completion of All Saints' Church, Mrs Younger gave a girls' club, a men's club and a house for the district nurse to the village of Strathkinness. She was especially interested in the welfare of the village and for many years presented prizes to the school pupils for perfect attendance and proficiency. She took an active part in the work of Strathkinness Women's Rural Institute of which she was president. She also assisted in the building of St Regulus Club, a staff boarding house for St Leonard's School.
She and her husband donated the Younger Hall to the University of St Andrews. It was built at a cost of £90,000 and formally opened in 1929 by the Duchess of York when it was presented to the University. Mrs Younger was President of the St Andrews Horticultural Association and for many years the exhibit of flowers from Mount Melville gardens was a feature of the shows. She took an interest in the St Andrews Cottage Hospital, and each year gave a Christmas dinner to staff and patients. Her obituary in the St Andrews Citizen (20 August 1942) stated that:
Mrs Younger was a lady of marked ability, and those who came into contact with her were impressed by the methodical way in which she dealt with matters with which she was concerned. Her many helpful and kindly acts indicated the Christian character that was behind them.
Mrs Younger died in August 1942 aged 78, and is buried in the Eastern Cemetery, St Andrews. The St Andrews Citizen gave this description of her memorial service:
The beautiful church of All Saints was filled with a representative congregation when the memorial service was held on Tuesday afternoon. Bishop Barkway, the Bishop of the Diocese, and the Very Rev. Dean P. H. Wilson officialted. The praise, which was led by the surpliced choir, included the 23rd Psalm and the 130th and 470th hymns.