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.
Ackley, IA Profile: Facts, Map & Data. Ackley, Iowa - Basic Facts. The City of Ackley had a population of 1,583 as of July 1, 2016. Ackley ranks in the upper quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Iowa. See peer rankings below.