In the original books, there are three Sir Topham Hatts, all of whom are direct descendants of one another. A fourth Topham Hatt is introduced as the railway director in the 2025 edition of
Sodor: Reading Between the Lines but has made no appearances in the series proper.
Sir Topham Hatt I (1880–1956) Aged 14, Sir Topham Hatt acquired an apprentice job at
Swindon Works. While there, he became friends with
W. A. Stanier. He came to Sodor in 1901, joining A. W. Dry & Co at Tidmouth. On their recommendation, he became an engineer successively for 3 railways on the Island of Sodor. In 1953, he welcomed
Queen Elizabeth II on a visit to Sodor. He retired the following year, and was succeeded by his son Charles Topham Hatt.
Sir Topham Hatt II (1914–1997) After graduating from Cronk School, Charles worked at a factory in
Crewe, but joined the
Royal Engineers upon the outbreak of
World War II. He then was promoted to a
Colonel, and completed his military service upon the war's conclusion. In 1952, he returned to Sodor as an engineer at the Crovan's Gate Works. Upon the retirement of his father, Hatt became the second Director and inherited the title of Baronetcy. During his tenure, he presided over the refurbishment of Knapford Port, reopened the Arlesdale branch and building the Arlesdale Railway. In 1940, he married Amanda Croarie and had two children, Stephen Topham and Bridget Hatt. He retired from his position as controller in 1984, and was replaced by his son, Stephen Topham Hatt.
Sir Topham Hatt III (1941–2023) Stephen Topham Hatt became the third Director in 1984. He has had three children since marrying Helen Margaret in 1970, and in 1995 he welcomed
Charles, the Prince of Wales to the Island of Sodor. In the 2025 edition of
Sodor: Reading Between the Lines it was revealed Sir Topham Hatt III had retired in 2023, but remains busy as Chairman of the Crovan's Gate Preservation Society, Sodor's first railway museum.
Richard Topham Hatt (2023-present) Richard, became the fourth director in 2023 following his father Stephen's retirement. As of 2025 his father was still alive, and Richard had not inherited his baronetcy. At his father's retirement ceremony Richard presented him with Neil, a surviving
Neilson and Company locomotive and Sodor's oldest surviving engine; which became the first addition to the new Crovan's Gate museum. == Naming ==