Parents of Brita Maja Håkansson 1799-1864

I am looking for information on the parents of Brita Maja Håkansson DOB was 26 Aug 1799 DOD was 19 March 1864 in Stenkullen. Her parents were Ander Björkvall and Maria Andersdotter. I am looking for birth and death information along with sibling information for Brita.

My second question is: The surname Björkvall seem different to me then most of the patronymic names I have in my tree. I know that Björk means brich, but why "Vall" and what does it mean.
Thank you,
Jeff