Background
He was born in Liverpool, and was the son of a naturalised Dane.
He was born in Liverpool, and was the son of a naturalised Dane.
In March 1916, Francis Neilson, Member of Parliament for Hyde, resigned his seat. Jacobsen was chosen as Liberal candidate, and was endorsed by the Asquith led Coalition Government. He was elected at the ensuing by-election.
He held the seat until the 1918 general election, when the constituency was abolished.
In 1917 he was appointed as private secretary to Leo Chiozza Money, Parliamentary Secretary to the Ministry of Shipping. In 1918 he contested the new seat of Stalybridge & Hyde and was defeated;
He was part of the Liberal-supported Progressive grouping on the council.
In 1921 the Member of Parliament for Southwark South East resigned, and Jacobsen was chosen by the local Liberal Progressive and Radical Association to fight the by-election. He was not opposed by the Conservative Party, but refused to describe himself as a Coalition Liberal, but as a "Liberal supporting the Coalition Government".
The contest took place on 14 December 1921, and Jacobsen was heavily defeated by Thomas Naylor, leader of the London Labour Party.
Jacobsen lost his seat on the London County Council in 1922, and stood unsuccessfully for the Liberals at Lambeth Kennington at both the 1923 and 1924 general elections. Jacobsen retired from politics, and was president of the Stationers Association of Great Britain and Ireland from 1929 to 1931. In 1935 the Jacobsen and Welch Company was sold.
He died in Worthing, Sussex, in 1941, aged 77.
30th United Kingdom Parliament]
Jacobsen was a resident of Brixton in South London, and in 1919 he was elected as a member of the London County Council for Lambeth North.