According to Anders Bengtsson's obituary (Andrew Benson of Titusville, PA), two of his children died in infancy. The only two children that this could be are Emma Potentia Andersdotter and Karl Andersson. Emma was born 3 Mar 1882 and Carl was born 30 Mar 1887, both in Tvååker.
This is Anders' familysearch ID- G3PB-M25. His wife was Anna Sofia Pehrsdotter. Her ID is LYZN-V4H.