"Dutch Loaf" is a luncheon meat made from coarse-ground lean Pork and Beef mixed or coated with savory

Savory

Savory or Savoury may refer to:* Savory , herbs of the genus Satureja, particularly :** Summer savory , an annual herb** Winter savory , a perennial herb* Savoriness, a type of taste....

 spices, formed into a loaf shape and then smoked over a hardwood

Hardwood

Hardwood is wood from angiosperm trees . It may also be used for those trees themselves: these are usually broad-leaved; in temperate and boreal latitudes they are mostly deciduous, but in tropics and subtropics mostly evergreen.Hardwood contrasts with softwood...

 fire. It is a popular sandwich filler in America. Most major deli-meat companies make their own variation.
It is known by different names in various parts of the country because different makers of it named it what they wished.

The name "Dutch Loaf" is probably derived from "Pennsylvania Dutch Meatloaf", a similar dish from rural Pennsylvania

Pennsylvania

The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

 introduced by German immigrants

Pennsylvania Dutch

Pennsylvania Dutch refers to immigrants and their descendants from southwestern Germany and Switzerland who settled in Pennsylvania in the 17th and 18th centuries...

. The name "Old Fashioned Loaf" was simply the result of a different meat producer's desire to brand their version with that name instead.