"Wilson Park Pavilion" https://county.milwaukee.gov/files/county/parks-department/Park-Maps/Wilson11.pdf

Gazebo https://county.milwaukee.gov/files/county/parks-department/Park-Maps/Wilson11.pdf

"Wilson Park Pond" https://dnr.wi.gov/lakes/maps/DNR/0015500a.pdf

This side of the park (20th Street west) is "Wilson Park Recreation Center" or "Wilson Recreation Center" https://county.milwaukee.gov/EN/Parks/Explore/Find-a-Park

Like the other notes, there should be some continuity with the names. It appears that "Wilson Park [Name]" is more common than "Wilson [Name]".

"Wilson Park Ice Arena" or "Wilson Ice Arena" https://county.milwaukee.gov/EN/Parks/Explore/Community-Centers/Wilson-Ice-Arena

This is Villa Mann Creek (three words). Source: https://www.mmsd.com/application/files/4314/9522/1491/KK_Watershed_Flood_Management_Plan_05_04_17_-_-EXECUTIVE_SUMMARY_002.pdf
https://www.usgs.gov/media/videos/reconstructing-streams-zones-freeway-expansion-villa-mann-creek
or just google "villa mann creek milwaukee"

Sand volleyball https://county.milwaukee.gov/files/county/parks-department/Park-Maps/WilsonRec1.pdf

Tennis court https://county.milwaukee.gov/files/county/parks-department/Park-Maps/WilsonRec1.pdf

"Wilson Park Senior Center" or "Wilson Senior Center" https://seniorcenter.us/sc/wilson_senior_center_dining_milwaukee_wi

The entrance ramp from National Avenue to I-41 northbound is currently closed to traffic until October 2016. Please update.
Thanks,
- Zoo Interchange Construction Team