Help determining the mother in two baptism records

[George Lind]

Attached are two images of baptism records for Berndt Henriksson's children.  I cannot find the mother's name in either one.
I believe her first name was Gertrud.  Her last name might be Bengtsdotter.
Can anyone figure out who the mother is?

The first is for his daughter Kierstina Berndtsdotter born in Risekatslösa March 23, 1757.

Here is the link to the page on the Swedish National Archives.
https://sok.riksarkivet.se/bildvisning/C0068601_00015

The second is for his son Nils Berndtsson born in Risekatslösa May 25, 1753.

Here is the link to the page on the Swedish National Archives.
https://sok.riksarkivet.se/bildvisning/C0068601_00010

Thanks,
George

[Ulf Svensson]

In the 1757 record the mother 'Jertru' is mentioned

[George Lind]

Thank you.  Is the last name mentioned?
George

[Ulf Svensson]

Sorry, not mentioned.

[George Lind]

Thank you again.