Table:
source
union
confederate

killed
wounded
captured/ missing
total
killed
wounded
captured/ missing
total

national park service
none
none
none
18,400
none
none
none
11,400

bonekemper, victor, not a butcher
2,246
12,037
3,383
17,666
1,495
7,928
1,702
11,125

catton, grant takes command
2,265
10,220
2,902
15,387
none
none
none
none

eicher, longest night
2,246
12,037
3,383
17,666
none
none
none
7,750-11,400

esposito, west point atlas
none
none
none
15,000-18,000
none
none
none
c. 7,500

foote, civil war
none
none
none
17,666
none
none
none
7,800

fox, regimental losses
2,246
12,037
3,383
17,666
none
none
none
none

mcpherson, battle cry
none
none
none
17,500
none
none
none
under 10,500

rhea, battle of the wilderness
none
none
none
over 17,666
none
none
none
about 11,000

smith, grant
2,261
8,785
2,902
13,948
none
none
none
none

young, lee's army
none
none
none
none
1,477
7,866
1,690
11,033

Statement: grant's union had 17,500 casualties as of mcpherson.
Question: how many casualties did mcpherson have totally?
Answer: [17500.0]