You can enlarge the card with the buttons on the left maybe then the names are more readable.
First column is the surname,then christian name,sex : m = male, v = female, place in the family : hfd = head, vr = wife, zn = son, dr = daughter,date of birth, place of birth, date married ( and to whom ),then some remarks ( those are not always clear to us ! ) then click on top on "achterkant" there you find : profession , date they moved in The Hague , the addresses,date they moved to The Hague, place they came from ,date they moved from The Hague, place where they moved to ,date of death,nationality.
Some remarks : As you can see the couple Rikkerink / Wernke married 07-Aug-1907 The Hague and got divorced ( = S ) on 01-Nov-1923 (court decision Haarlem 17-Jul-1923 )http://22.214.171.124/hga/virtuelestudiezaal/WebsitePubliek/...
At the bottom of the front-side it saids there is a follow-up card but I couldn't find it online.
As you can see is the last daughter Johanna born after the divorce but at that time a child born untill 300 days after a divorce still got the surname of the man.
The familycards were used untill about 1938 /39 after that every-one got his own personal-card.
Any questions , just let me know.