Catlyn if you would rather not use inline sources (some love them, some hate them, some use them depending on the profile) and use bullets then yes you can delete some of the redundant ones that are there because of inline sourcing.
As for what to consolidate. 2, 3, 4 and a bullet all refer to the same 1920 census record. You can consolidate them.
Under the Biography header you can delete Name sub head and data and Birth sub head and data as they are covered in the synopsis above.
I would keep the residence but delete the little footnote number because you are deleting inline sources.
Now under sources, Take info in # 1 and combine it with the bullet for 1920 Census. After you do that delete 1, 2, 3.
then put an * in front of Source: "Memorial and Biographical History of the Counties of Fresno, Tulare, and Kern, California", Lewis Publishing Co., Chicago, 1891 to create a bullet for it.
The two bullet sources for the census in 1920 under the 1, 2, 3 can also be consolidated as part of the 1920 census bullet. You may want to move everything to that bullet then look at it and edit it so there is no redundancy in the final bullet.