Yes, dry mustard can safely be used as a substitute for mustard seed. However, it may make the brine cloudier than mustard seed and may alter the flavor.   1 teaspoon mustard seeds = 1Â½ teaspoons dry mustard.
Humeston is a city in Wayne County, Iowa, United States. The population was 494 in the 2010 census, a decline from 542 in the 2000 census.
In 1880, only 391 people resided in the town, and roughly forty percent of these residents were school-age children. For most of the twentieth century, Beallsville's population remained near 470 people. The community is most famous for having the largest number of people per capita killed in the Vietnam War.