no
Benjamin Harrison was a Brigadier General in the American Civil War.
Maybe
No. The US was not in any wars while Harrison was President.
Yes, there are.
Yes, Benjamin Harrison had a total of three siblings. He had two brothers, named William Henry Harrison and John Scott Harrison, and one sister, named Mary Harrison. Harrison was the 23rd President of the United States and came from a prominent political family in Indiana.
Alaska has eight national parks (some are also preserves), three national monuments, and three national preserves not connected with any national park. California has seven national parks (or eight, if you count Sequoia and Kings Canyon as separate), six national monuments, and one national preserve. I'll let you decide which state has the "greatest number."
Benjamin harrison
Yes. William Henry Harrison's grandson, Benjamin Harrison was also a US president.
Whether Benjamin Harrison was a hero will depend on your definitio of "hero." He had an excellent record as an officer in the Civil War. He was promoted to brigadier general because of his outstanding service. He was not wounded or and did not win any medals.
None. Benjamin Harrison represented Indiana but was born in Ohio. One U.S. President, Benjamin Harrison, was born in Indiana.
Benjamin Harrison served in the Union Army during the American Civil War. He was a Brigadier General and commanded a brigade at the Battle of Resaca. So, to answer your question, he served in the Army, not the Navy, Air Force, or any other branch.