|3rd Election District, Queen Anne's County, Maryland, 1850 US Census|
First, I decided to see what else I could find out about the family in the census records. From their ages in the 1850 census, Samuel and Ann would have been born around 1795 and 1804. I didn't have any luck finding Samuel or Ann in the 1860 census. Samuel and Susan Sparks are living on their own by then.
A search for Sam* Go*dwin in the 1850 census for Queen Anne's turned up 4 matches, all born in Maryland.
From their birth years, the last 2 Samuels would have been around 12 in the 1840 census, so I would not expect to see an entry for them. That leaves my Samuel and a second Samuel with the middle initial "P". My Samuel is in District 3, while Samuel P. is in District 1. Both families had 1 child living with them in 1850, but Samuel P.'s was a newborn.
The same search for 1840 turned up two Samuels.
I'm looking for a family that has 1 male, 45 years old, 1 female, 36, and 1 female, 8. Samuel Z. does not seem to be a match since the oldest male is between 30-39, there is 1 male child between 10-14, a female between 20-29, and a female between 50-59. The family for the other Samuel does not match either. Opening the search up to all of Maryland only produced one more Samuel that was not a match.
I did one final search in Maryland for all Godwins or Goodwins and still didn't find a match. The 1840 census is tough since it doesn't list family members and it's possible that they were living with another family. In my next searches, I'll see if I can track down some of my other Queen Anne's surnames in 1840 and also see if I have any luck finding Samuel's neighbors from 1850 in the 1840 census.