August Sigfrid Carlsson (or Karlsson¹) was born 12 February 1884 in Dagsås (near Varberg), Halland to Karl Magnus, a shoemaker b. 19 September 1844 at Dagsås, Varberg, Halland County, and Johanna Beata (nee Andreasdotter, b. 28 September 1853 at Dagsås) Johansson, who had married in 1874.

His known siblings were Emma Charlotta, b. 29 November 1875, Johan Albin, b. 23 April 1878, Selma Elisabeth, b. 29 March 1880 (d. 26 December 1880), Josefina Elisabet, b. 1 November 1881, Gustaf Daniel, b. 11 November 1886, Carl Ragnar, b. 11 February 1889 (d. 14 April 1889), Anna Sofia, b. 21 May 1890, Karl Julius, b. 3 January 1893, Hulda Viktoria, b. 21 March 1895, and Estrid Ingeborg, b. 12 August 1896.

On 27 December 1907 Carlsson was married to Julia Stenström (b. 2 October 1887) and they had two sons: Karl Johan (b. 12 July 1908) and Gunnar David (b. 13 July 1910).  The family lived in a croft near Öströö castle in Dagsås.

August was travelling from Dagsås to a brother in Tower, Minnesota. He departed on 1 April and travelled from Copenhagen to Esbjerg on 6 April. From there he got a ship to England. He boarded the Titanic at Southampton as a third class passenger (ticket number 350042 which cost £7, 15s, 11d).

Julia was pregnant and it was intended that she would follow with the children after a year when the baby was a few months old. 

August died in the sinking and his body was never found.

The Mansion House Fund paid 2699.52 Kr (£148) to his widow and 875.52 Kr (£48) to his parents. 5466 Kr (£300) damage claims were also later paid to his widow, children & parents. The large damage and support sums is explained by the fact that the family and probably also the parents were fully dependent on his income.

When August died, Julia moved home to her parents in Rör. She gave birth to a son, Karl August, on 19 September 1912. She had reportedly lost her eldest son only days before.

She met her second husband, Karl Gustaf Karlsson in 1916.  In 1917 she had a son Helge and on 11 September 1919 she gave birth to another child, Asta Johanna Elemina, her late husband was named as the father; Gustav and Jullia had been unable to marry because August had not been officially declared dead, so Gustav went to the priest to claim paternity (noted in the church records).  When he was officially declared dead on 8 March 1920, the date of death was wrongly given as 14 April 1912.  Julia and Gustav were finally married on 27 December 1920, coincidentally that same date as Julia's marriage to August, they would go on to have six more children.

Julia Carlsson died on 18 December 1950.