An 1850 US sample I extraced shows n= 1,901 for white males in Mississippi & an 1860 sample I extracted shows n=3,574 for white males in Mississippi. Both data sets are listed by MPC as 1% samples of the free population. Given this, it appears odd to me that the 1860 sample is nearly twice as large as the 1859 sample (a ratio of 1.88), especially since the 1850 Census Report shows 156,287 white males in MS and the 1860 Census Report shows 186,273 white males in M, which yields a ratio of only 1.19. This census count ratio is far below the 1.88 formed from the two 1850 and 1860 MPC samples for the same population. Any ideas on what is going on? Thanks.