According to Vigurætt, the children of John. A. Woods and Áslaug Sigurðardóttir were:
Esther Woods, b. 1950, married to Bradley Allen
John Woods, 1953-1976, left no children.
Guðrún Susan Woods, b. 1954, married to Roger Best
Jenny Allen Woods, 1957-1999
Carol Ann Woods, b. 1959, married to Michael Smith
Christine Jóna Woods, b.1961, married to Kenneth Raper
Michael Sigurður Woods, b. 1963
Brian Vilmar Woods, b. 1964, married to Yun Chong
Joanne Woods, b. 1968, married to Gene Frimann
Note, however, that some of this information may be obsolete now - the book is a bit old, and people may have divorced or died since it was published.
As for Áslaug, I cannot see any connection between her and Björk's family which you asked about earlier, so I am going to consider that just some weird misunderstanding.