In the meantime, the following family structure was presented:
Birde Ydses: knd: *Ids Birdes x Sij Botes Nijdam *Siebren Birdes x Aafke Botes Nijdam: 3 zn 5 dr: Reinu, Nieske, Gertie, Suike, Frouck *Wlck Birdes x Jan Gerryts x 1645, beiden Irnsum > Frouk Jans x Oene Frericks x 1671, zij Irnsum hij Grouw - 1698 gebr stem 18 en met zoon eig. stem 19 Grouw - Peen >>> Birde Oenes x Jeltje Jelles 1694 - wed. in 1728 gebr SC 19 Grouw, eig. Nieske Idzes >>>>> Ibel Birdes x Oene Frericks 1738
Petra: My apologies for the slight oversight in not mentioning I posted it in another forum. Since I didn't receive much of a reply on Birde, I would try here. On another note, I have been grieving over the recent passing of my eldest brother, so I kindly ask that you please cut me a little slack:
There is a "Birde Inties, koper te Goingarijp"; "patroniem onzeker" ( 'Birde Inties, buyer at Goingarijp' 'patronym unsure') to be found here in 1606. This document apparently has got extensive waterdamage. Goingarijp and Akkrum are only 6 km apart:
Also, in 1610, another document from the same waterdamaged source or archive, mentioning 'Birde' and 'Sijbolt Birdes' (= Siebren Birdes??). Interpretation of this document apparently is very unsure as to who is playing what role.
And in 1634, a Birde Intes living Roordahuizum (~10 km north of Akkrum) marries Nin Jelmers.
The above data may be far fetched. But since records are scarce every avenue should be explored I think.