Hi Georgia,
I found the following information about Hannas children on the Swedish death index 1947-2003 (a CD):
Sofia Olsson, 10 November 1875. She was widowed 11 December 1952 and died herself 27 February 1968 in Ullstorp, Tomelilla Township (Kristianstads County, Skåne. Her address was Ullstorp 11:58 at the time of her death.
Sofia got married 21 November 1902 to Nils Månsson, born 1 June 1868 in Östra Vemmerlöv, Kristianstads County, Skåne.
Martin Olsson, born 23 October 1879. He became a widower 16 April 1960 and died 27 January 1966. His address was Baskemölla 5:23 at the time of his death. Martin got married 7 November 1903 to Johanna, maiden name Jönsson, born 4 March 1874 in Rörum, Kristianstads County, Skåne.
Anna Olsson, born 15 August 1881. She was widowed 14 May 1953. Anna died 29 October 1970 Östra Nöbbelöv, Simrishamns Township, Kristianstads län, Skåne. Her address was Gislöv 11:4 at the time of her death.
Anna got married 1 November 1901 to Kristian Didricksson, born 8 October 1869 in Brösarp, Kristianstads County, Skåne.
Please view my suggestion on what to do next in order to find out if they had children or not by reading my answer that I posted in regard to your question about Josef Larsson:
http://aforum.genealogi.se/discus/messages/44/73186.html?1121245850#POST492189 Best regards
Anna