Swedish surnames or last names can be confusing. The patronymic system was used for so long and then surnames were adopted so freely during the 19th century. If you have a Swedish surname you are lucky if the name goes further back than that.

• Family names in Sweden a WikiTree space page about the types and timeline
• Patronymics in Sweden a WikiTree space page about all those -sson and -dotter names
• Swedish name laws

You will need to check if a married woman really used a married name.

• Married names for Swedish women a WikiTree space page

You will need to check for soldier names. Those were surnames but not family names.

• Soldier names a WikiTree space page

First names in Sweden can also be confusing, partly because of the many spellings and name variants used for the same person, partly because of the common use of "double names" from circa 1800 and to the present.

• Given names in Sweden
• If you are going to work mainly on Swedish profiles, there is a Setting to always hide the Middle Name field when you create profiles and automatically set the "no middle name" qualifier. It's found at the very bottom of your Settings page.

Name field guidelines may be found on the relevant subpages.

There is more in Category:Swedish_Names