I see Brian has already answered what you asked me for and more :o)
The only info I may add is the family have been moving at least three times. From Aardal to Klepp between 1825-26. From Klepp to Hoyland in 1844 and from Hoyland to Halsne at Finnoy before the 1865 census. When they are moving from Klepp to Hoyland parrish in 1844 we are getting a list of their children born until then below here:
The have been living in Klepp parrish until 27.Th April 1844 just 2- 3 month before Thores birth when they moved to Høyland parrish.
The rigth column moving from Hole farm to _:Schjefveland_ (sic (Skjæveland these days) in Hoylands parrishhttp://www.arkivverket.no/URN:kb_read?idx_kildeid=1625&i...
Gaardmand Haldor Jonasen Hole 50 og hans hustrue Malli * Pedersdatter 48 og børn:
Bertha Malene 10
Elen Sofie 6 1/2
Below here is a page from Hjelmeland Bygdebok. Showing Haldor Jonassen Sigmundstads parents and siblings.http://www.nb.no/nbsok/nb/30998f4a758c51d17c34b601b16fec1d.n...
*Malli is a nickname for Magdalena ( Malena)
Here you will find 5 of the children christened in Klepp parrish:http://digitalarkivet.no/cgi-win/webcens.exe?slag=visbase&am...
Her you will find the 2 last children christened in Klepp parrish:http://digitalarkivet.no/cgi-win/webcens.exe?slag=visbase&am...
Bertha b. 10.Th February 1825 Aardal subparrish Hjelmeland parrish
Serina b 2.nd Sept 1826 (born in Klepp parrish)
Jonas b 9.Th February 1828 (born in Klepp parrish)
Andreas b.15.Th. January 1830 (born in Klepp parrish)
Peder b. 4.Th November 1831 (born in Klepp parrish)
Bertha Malene b. 11.th June 1833 (born in Klepp parrish)
Haldor b. 2.nd June 1835 (born in Klepp parrish)
Elen Sofie b. 29.Th December 1836 (born in Klepp parrish)
Thore b. 25.Th July 1844 in Hoyland parrish.
However I can`t find any Martin Haldorsen b 1840.