Here’s a quick story of Thomas Lawlor. In November 1882 Ofc. Thomas Lawlor, an Irish immigrant, who lived on 4th St NW in Truxton Circle, was at work and fell ill. Then he went home, and died. 
Thomas Lawlor lived at 1618 4th St NW with his wife Ellen, and their two children Daniel and Mary in 1880.
The 1880 census didn’t ask if people were owners or renters. I only discovered that Lawlor owned the property because I was searching for the newspaper announcement that he had died. In addition to finding his funeral arrangements, I found a mention of a real estate transfer.
For some reason Thomas Lawlor, the resident of 1618 4th St NW in 1880, sold/ transferred the property (0509E-0053) to James Lawlor in 1878. I don’t know if James is a relative.
It seems to be a very Irish thing, of that time, to have something at the home of the deceased. It appears they departed from 1618 and made their way to Immaculate Conception Catholic Church. I wonder if the German George Glorius and his family, one block over, joined the procession? The Glorius family also attended Immaculate, which from personal experience, is a 15 minute brisk walk away from 1618.
There is very little of interest in his personnel file (see https://catalog.archives.gov/id/145835884). He seemed to have wandered into a grocery on North Capitol, where he wasn’t supposed to be, and was written up for it.