You don't really mean for me to look in Chicago IL over a 90 year time span do you? What were Kathleen's parents names? Do you have any idea how many males with a Howard surname born in 1888 there were? You aren't giving me much to go on to find your Kenneth Martin Ault. About the only thing I've found is a Kenneth Ault age 9 on the 1920 Pittsburgh PA census. I haven't a clue if this could be who you are looking for, since you aren't giving me any idea when he was born.