I glanced at your site and picked Eva Lisa Nilsdotter at random because she had emigrated at a late enough time period that she might be on a database. Since her father was Zakris, she would have been Zakrisdotter (daughter of Zakris Nilsson, who was the son of Nils something) in Sweden. I found someone who married your Jonas Peter, so I think she is the right one.
==============================================
ID: I6623
Name: Jonas Peter (Johannisson) Lundeen
Sex: M
Birth: 1824 in Sweden
Death: Unknown
Change Date: 5 JAN 2006
Marriage 1 Eva Lisa Nilsdotter b: 1827 in Sweden
Married: in Sweden
ID: I6622
Name: Eva Lisa Nilsdotter
Sex: F
Birth: 1827 in Sweden
Death: Unknown in Nicollet County, Minnesota
Change Date: 5 JAN 2006
Father: Zachris Nilsson b: 1802 in Sweden
Mother: Christina Eliaedotter b: 1798 in Sweden
Marriage 1 Jonas Peter (Johannisson) Lundeen b: 1824 in Sweden
Married: in Sweden
=================================================
I think this is that couple (plus some children) on the Emibas CD. Emibas was made from registrations in the Swedish parish to go to a foreign country. It is about 75% complete.
Hemmansägare = farm owner. Hustru = wife.
Post 202704
Johannisson, Jonas Peter
Hemmansägare (married man)
b. 5/15/1824 in Alseda, Jönköpings län (Småland)
Emigrated 8/3/1853
from Gettinge Svensgård, Vetlanda, Jönköpings län (Småland)
to Nordamerika
Source: Household Examination Roll, p. 60
Emibas migration file ID: Vetlanda F 1853 003
Post 202705
Zakrisdotter, Eva Lisa
Hustru (married woman)
b. 12/12/1827 in Bäckseda, Jönköpings län (Småland)
Emigrated 8/3/1853
from Gettinge Svensgård, Vetlanda, Jönköpings län (Småland)
to Nordamerika
Source: Household Examination Roll, p. 60
Emibas migration file ID: Vetlanda F 1853 004
Post 202706
Jonasson Johannisson, Johan August
Unmarried man
b. 3/6/1848 in Vetlanda, Jönköpings län (Småland)
Emigrated 8/3/1853
from Gettinge Svensgård, Vetlanda, Jönköpings län (Småland)
to Nordamerika
Source: Household Examination Roll, p. 60
Emibas migration file ID: Vetlanda F 1853 005
Post 202707
Jonasdotter Johannisson, Kristina Maria
Unmarried woman
b. 9/29/1851 in Vetlanda, Jönköpings län (Småland)
Emigrated 8/3/1853
from Gettinge Svensgård, Vetlanda, Jönköpings län (Småland)
to Nordamerika
Source: Household Examination Roll, p. 60
Emibas migration file ID: Vetlanda F 1853 006
This is important to read.
http://www.genealogi.se/roots/nwonamn.htm Judy