Read the bio below and try to give details on alexander mackenzie -lrb- engineer -rrb- 's: - death place - caption - placeofburial label - battles - death date - allegiance - commands - birth date - serviceyears - name - branch - image - birth place - rank Bio: alexander mackenzie was born may 25 , 1844 , in potosi , wisconsin and graduated from the united states military academy in 1864 . commissioned in the united states army corps of engineers , he served with the union army in arkansas in 1864-65 . mackenzie spent six years commanding a company of engineer troops at willets point , new york , that experimented in the use of torpedoes in coastal defense . in 1879 he began a 16-year stint as rock island district engineer . he built 100 miles of wing dams on the upper mississippi river and produced a 40-foot channel between st. paul and the mouth of the missouri river . called to washington in 1895 , he became assistant to the chief of engineers in charge of all matters relating to river and harbor improvements . he was the first senior member of the board of engineers for rivers and harbors , which reviewed improvements submitted by corps of engineer officers . he was a member of the general staff corps and war college board when appointed chief of engineers on january 23 , 1904 . in that capacity mackenzie reported on the federal statutes relating to water power for the inland waterways commission , which was established by president theodore roosevelt in 1907 and presented in its preliminary report transmitted to congress on february 26 , 1908 . mackenzie retired may 25 , 1908 , as a major general , he was recalled to active duty in 1917 at age 73 as northwest division engineer serving again in rock island , illinois . general mackenzie died march 21 , 1921 , in washington , d.c.
Answer:
- death place is washington , d.c.- caption is brigadier general alexander mackenzie- placeofburial label is place of burial- battles is american civil war- death date is 21 march 1921- allegiance is united states of america- commands is chief of engineers- birth date is 25 may 1844- serviceyears is 1864 - 1908 , 1917- name is alexander mackenzie- branch is united states army- image is alexander mackenzie cph.3b34320.jpg- birth place is potosi , wisconsin- rank is major general