(In chronological order:)
   NAME          HIGH SCHOOL         HS TIME   COLLEGE    1ST SUB-4   DATE/MEET
Jim Beatty    Charlotte Central '53  4:31.9y -   UNC     - 3:58.0   5/28/60 Modesto, CA

Tony Waldrop  Polk Central '70       4:18.1y -   UNC     - 3:58.4   4/21/73 Raleigh, NC

Jack Bolas    Chapel Hill '06        4:04.38 - Wisconsin - 3:59.40i 2/09/08 Notre Dame

Dylan Ferris  East Forsyth '08       4:08.1y - Stanford  - 3:58.90i 2/13/10 Seattle, WA

Ryan Hill     Hickory '08            4:13.2y -  NC State - 3:58.33i 2/04/12 Blacksburg, VA

Bobby Mack    North Forsyth '03      4:10.61i - NC State - 3:59.70  5/29/12 Warwick

Isaac Presson Asheville '10          4:08.46y -  UNC     - 3:58.67  6/01/13 Nashville, TN

Taylor Gilland  Chapel Hill '09      4:10.38y - Virginia - 3:58.77i 2/08/14 Boston

Jake Hurysz   East Alamance '10      4:06.18y - Colorado - 3:58.13i 2/13/15 Seattle

Graham Crawford   Burl. Williams '11 4:20.11  - NC State - 3:58.45  7/23/16 Atlanta

Craig Engels  Pfafftown Reagan '12   4:03.96y - Ole Miss - 3:57.67  8/04/17 Raleigh

Cameron Ponder W-S Mount Tabor '18   4:04.24y - Furman   - 3:59.34i 1/22/21 Birmingham, AL

Carson Williams Cardinal Gibbons '20 4:14m    - Furman   - 3:59.64i 1/27/23 Clemson

Rocky Hansen Arden Christ School '23 3:58.23y -WakeForest- 3:59.56  4/30/23 Charlottesville, VA

 i = Performance was run indoors.
 y = High school performance was at 1-Mile (1609 meters).

Source:  History: US Sub-4:00 Milers - TrackAndFieldNews.com

Note: This list involves only genuine One-Mile track races; not relay legs, 1600s or road races.

One Mile is 1609 meters. It's 9 meters (9 yards, 2 feet and 6.330708661417248 inches) longer than the 1600.  To convert Mile times to 1600 meters, Track and Field News and The High School Yearbook use .994194 multiplied by the Mile performance in seconds.

Bolas' best 1600/Mile in high school was in a 1600m race (4:04.38). Mack also (4:10.61i). All of the others ran their high school best for 1600/Mile in a Mile race. The 'y' following the times indicates it was a Mile time. (See NC All-Time 1600/Mile List)  Note that many of these guys are also on the 800 and 3200 lists.

Hansen was the 1st NC miler to run under 4:00 while in high school -- which he did twice.

Links:
Beatty, Charlotte Central HS '53 - (wikipedia.org)
Waldrop, Polk Central HS '70 - (NCPrepTrack)
Bolas, Chapel Hill HS '06 - (UWbadgers.com) ... 3/08 Photo/Story - Track & Field News
Ferris, East Forsyth HS '08 - (NCPrepTrack)
Hill, Hickory HS '08 - (GoPack.com)
Mack, North Forsyth HS '03 - (NCPrepTrack)
Presson, Asheville HS '10 - (GoHeels.com)
Gilland, Chapel Hill HS '09 - (VirginiaSports.com)
Hurysz, Eastern Alamance HS '10 - (FootLockerCC.com)
Crawford, Burlington Williams HS '11 - (GoPack.com)
Engels, Pfafftown Reagan '12 - (Wikipedia.org)
Ponder, Winston-Salem Mt. Tabor '18 - (FurmanPaladins.com)
Williams, Raleigh Cardinal Gibbons '20 - (FurmanPaladins.com)
Hansen, Arden Christ School '23 - (Gatorade.com)

   NAME               HIGH SCHOOL        HS TIME   COLLEGE      1ST SUB-4:30   DATE/MEET
Mary Jayne Harrelson  Person County      2:19.77   Appalachian   4:29.10y       8/9/03 Falmouth, MA

Elly Henes         Cary Green Hope HS    4:53.43y  NC State      4:27.66y       8/5/22 Raleigh, NC

--- More on Harrelson: -----------------------------------------------------------
1st - NCAA 1500 4:21.06 1999 NCAA Championships, Boise, ID
1st - NCAA 1500 4:14.30 2001 NCAA Championships, Eugene, OR (App State School Rec.)

ASU School Record Holder in 800:  2:03.10 2001 NCAA Championships
ASU School Record Holder in 3000: 9:35.92 2001 Virginia Military

Profile - WorldAthletics.org   Wiki Page

--- More on Henes:----------------------------------------------------------------
1st - NCAA 5000         2021 NCAA Championships, Eugene, OR

NCSU School Record Holder in 5000: 15:18.75 2021 West Coast Relays
NCSU School Record Holder in 1500:  4:10.23 2021 ACC Championships

Six-Time ACC Champion.

Profile - WorldAthletics.org   Profile - SirWalterMiler.com