Sorry to learn the reason for your free time! It's rough going everywhere!
William B. Bush is known to have resided and died in Mississippi County, Missouri. Mississippi County was formed from Scott County about 1840-46. Scott County was formed from parts of New Madrid County about 1820. William B. Bush originally then settled in what was then New Madrid County by 1814 when he served with the Rangers. Goodspeede records in his volumes on MIssouri history that William Bush was an early settler in Long Prairie.
Below are several census records for our William B. Bush.
1830 Kelso, Scott Co., MO census: William Bush 1 male 30-40; 1 male -5; 1 male 5-10; 1 male 20-30 1 female 30-40; 1 female -5; 1 female 10-15
1840 Scott Co., MO census: William B. Bush 1 male 40-50; 1 male -5; 2 males 5-10; 1 male 10-15 1 female 20-30; 1 female 10-15
Later census records show William B. Bush in Mississippi County and include names of his wife (Anna) and children.
No idea who the several wives of William Bush included. His final wife was the widow, Mrs. Anna Marie Joseph Humphreys who he married in 1840. She was the widow of Washington Humphreys and they had come from Maryland in about 1836. He died about 1838. She was the daughter of Joseph Russell and born in 1817. She was quite a bit younger than William - by 20+ years.
I'm anxious to see what you dig out!!
Learning that William's middle name is Bennett is a big discovery! Thanks.