I too am a Richard Ibrook descendant, through his daughter Margaret (who married John Tower).I recently took a 23andme autosomal DNA test (the kind of test both men and women can take- it tests all 23 of your chromosomes rather than just your y-chromosome or your mitochondrial DNA).I came back as a match with a man named Albert who also is a descendant of Richard Ibrook, but through his daughter Elizabeth.
It appears that we both carry either his DNA or the DNA of his wife, on our 12th chromosome.I would like to invite other descendants to take the DNA test.It has been very helpful (and fun and addicting!) when the results come back.
Which child do you desend from?
I look forward to hearing from you!