Margaret's mother and father,  Catherine Lantz and John Clemmens were both living at Hood River, Oregon at the time that they were married. Exactly when they arrived in the Hood River Area is less certain. Although the records say they were both born at Hood River Oregon in1801, this is very doubtful, since you must think that the Lewis and Clarke Exp. did not opened up Oregon until 1806.

m. John Clemens

Read below the story of Margaret's brother David Clemens death on what is now called Snake River Canyon, in Idaho. The history of Idaho says this about that area around Rock Creek.

In the 1840s, a rush of settlers followed the Oregon Trail to the Oregon country. Rock Creek was a popular camping spot along the Trail from the outset, and wagon ruts can still be seen at the site. When gold miners who rushed to southern Idaho in the early 1860s needed delivery of freight and mail, Rock Creek became a stop on what became the Kelton Wagon Road.

Also the name Hood River wasn't in usage until 1856. It would not be impossible for them to be born in that area, but very unlikely, it is more probably that they immigrated to Oregon from elsewhere.. Their story will be fascinating if it can be found. I have records for two brothers for Margaret, John Riley Clemens b.Aug 21, 1838, in Hood River, who settled in Sweet Gem, Idaho after marriage in Hood River, Oregon and David Clemens d. abt 1855. So the family was in that area an extended time.

David Clemens (from the Boise Idaho Paper)

"Mr. David Clemens, whose home is on Dry Creek, a few miles below this city, where his family reside, has been engaged in the freighting business between Boise City and Kelton. On Thursday last, while on the return trip from Kelton, he encamped with his teams at Desert Station on Overland Road. The stream known as Rock Creek flows through the deep canyon past the station between perpendicular bluffs, ranging from 60 to 100 feet in height. About a half mile above the encampment some immigrants with their wagons were encamped. After dark Thursday evening, Mr. Clemens and Mr. Frank Vincent left their camp to visit the immigrants. On the way, when they saw the immigrants campfire, Mr. Clemens declined to go farther, deciding to go back. Before dawn the freighters awake to prepare for the day's journey, when Mr. Clemens was missed and a search for him commenced, when it was found that he had wandered to the edge of the precipice near the canyon, where he had fallen over. He was found dead at the bottom of a cliff, 80 feet high and nearly perpendicular.  Mr. Clemens was a highly esteemed citizen, leaving a wife and several children and many friends mourn his loss."

 Mt. Hood from the Hood River Valley