Where are the genealogical records of these Apostles and Prophets kept? Are they a closely guarded secret?
Here ya go.
Bringem Young http://www.familysearch.org/Eng/Search/af/individual_record.asp?recid=3224057&lds=0&frompage=0
(click on the word “family” to the right of each woman’s name and you will see a list of children - you’ll have to add them up by yourself)
Heber C. Kimball http://www.familysearch.org/Eng/Search/AF/individual_record.asp?recid=3282582&lds=0®ion=-1®ionfriendly=&frompage=99