Sven Jacob Pira m. Margareta Beata Falks.
They had one child I know of: Johanna Katarina Pira b. March 19, 1821 in Ljusdahl Parish, Gavelborg county, Sweden. Johanna K. Pira m. Feb 8, 1848 to Jonas Englund, same parish.
Johanna and Jonus Englund had 4 daughters and 2 sons.
Sons Sven Olof b. May 10, 1849, and Jacob Adolph Englund b. March 12, 1852, and daughter Margreata b. October 12, 1854 were all born in Jarvso Parish, Gavelborg, Sweden. Other daughters I believe were named Hannah, Augusta, and Christina. I assume they were born in the same parish.

The daughters married men with the surnames of Anderson, Mattson, Frook (also Fruick spelling). Don't know which daughter married which man, but feel they were marriages made in the United States.
Margareta married a man named Lind and was living in San Francisco during the earthquake of 1906.
Son Jacob Adolph married Mathilda Erickson on Oct 17, 1882 in Osceola County, Michigan in the Swedish Lutheran Church of Tustin, Michigan. I'm told Jacob heard about Mathilda from a friend here in the states and sent her his photo, and passage money to come to America, and she did!
It doesn't appear that Sven married, and I think Sven came over @ 1906.
When did all of them come to the United States?
More info on any of the children, the parents, their locations, or any other connections appreciated.