Someone pointed out that Katarina had a child with a different name. I understand that the name of Ingeborg Andersdotter Herkepaea was in question. This last name is the Finnish version of the name Herkepaeus, the latin based name often used by university educated people, such as her son Erik Andersson Herkepaeus. Later generations, such as Erik's daughter Catharina Caisa Herkepaea, used the Finnish version of the name.
The Herkepaea (Herkepaa) line descends from Katarina Thomasdotter Blom's second marriage to Anders Kristofferson Herkepaeus
Best wishes,
Leena Marja Ankio