Author Gary Cheatham estimated that 25% of the 20,000 or so Kansas recruits were actually Missouri men. He doesn't define how he came to that percentage but it does add to the total Missourians in Federal Units. Author Wiley Britton, 6th KS Cav, was from Newton Co. MO and Cheatham's ancestor William Rider, 14th KS Cav, was from Cass Co. MO.