Thanks -- that sure is an interesting list.

I am not sure about 2 of the items.

* fuel for cars only sold in pharmacies - S.F. Bowser patented and began selling the “Self-Measuring Gasoline Storage Pump” in 1905.  So gas stations were around in 1915.  Some stations did not have the “Self-Measuring Gasoline Storage Pump” and sold gasoline in small containers (like you buy motor oil in).  Of course, most people couldn't afford a car in 1915.  Even if one could afford a car, roads outside of city limits or village limits were unpaved as well as rare.  

* The number of "reported murders" in 1915.  The number of Homicides in 1915 (based on federal government statistics) was 5.9 per 100,000 population  and the population was 100,550,000 -- so that works out to about 5,900 homicides in 1915.  The 2013 Homicide rate was 4.5 per 100,000 (based on federal government statistics) and the population was 315,000,000 -- so that works out to about 14,200 homicides in 2015.  Obviously, the number of homicides is higher in 2015 but the rate (based on population) of homicides is lower today than it was in the "good old days."       Oh -- and don't forget that in 1915 a lot of homicides ... such as domestic violence deaths as well as lynchings and "disappearances" of persons of color or some other oppressed group were not necessarily reported as homicides or any other type of crime.

Lots of folks will look at how cheap certain items were - such as -  14 cents for a dozen eggs -  but don't realize that it would take a 1/2 hour of work for the average worker to earn enough to buy them.
My grandparents used to tell stories about how connected extended families were when it came to producing food to feed each other.   My mother's mother's parents lived on a farm in Charlton raised pigs and fruit - my mother's father's parents raised cattle and corn on the farm they owned in Rotterdam.  My maternal grandparents raised chickens and ducks -- and had a huge vegetable garden on their place in Rotterdam.  Other members of the extended familly raised and/or grew various animals and/or crops. They (maternal grandfather's side) also owned a market in Schenectady where they sold items from these various farms.  We even had a a relative who turned some of the grain grown into "adult beverages" which -despite one of their son-in-laws being a police detective in the city,  was sold even during prohibition.  
All this to say that folks back then were more flexible, creative, self-reliant and could be both independent and interdependent in the healthiest sense of both words.