If you search on Ancestry for the sons of Haswell Magruder (1736-1811) in the 1810 census, you will probably find only Fielder (1780-1840) and William (1773-1842). Paging through the census images will reveal the other brothers, Samuel (abt 1765-1826) and Edward (1778-1842)–both quite readable, by the way.
Haswell’s daughters are also there, under their husbands’ names: James Moran, husband of Hester Beall Magruder (abt 1764-1832) and Adam Crawford (or Crauford), husband of his Sophia (abt 1771-1836). (Honestly, it looks like the girls just married the nearest man. Their choice or their father’s?)
All are in the “Scotland Ocean & Bladensburgh Hundreds.” The “hundreds” were the original districts, a terminology held over from colonial times.
But even knowing they were there, no amount of searching and no search engine trickery would cough up a result for Edward or Samuel.
…Until a big duh moment today, when I recalled the very different format on Family Search. It opens up a sidebar for transcriptions instead of a separate page, so you can scroll through both simultaneously. All I had to do was find Fielder and Haswell, on p. 53, and then scroll back to p. 50, where I knew the missing brothers were lurking. Both cleverly concealed, it turns out, under the transcriptions: “Ewd Maginden” and “Saml Maginden.”
When I entered those names on Ancestry, up they popped. I’ve entered alternate names for both, so hopefully future searches there will succeed.
Magruder's Landing 