We just finished MOH 1 this year with a 13yo, 10yo, 9yo. This was the first year we had all three in logic stage (I have a 14yo who is in her first year of rhetoric), but before this year I always did the same history and assigned different level books, writing, etc. I use sticky notes throughout the book to remind myself which books, Bible readings, etc. that I want to remember to do to correlate several subjects. I didn't do the MOH timeline because it was too much time for us, but we used the SOTW and WTM type of timeline and notebook. We have done those for so many years that we found it was just easier to keep that format.