Agricultural and Biological Sciences Faculty & Staff To quickly jump to a section, select one of the tags below. Department Chair Administrative Assistant Faculty Farm Manager Laboratory Technician Misc. Department Chair Dr. Drew Sieg Agricultural & Biological Sciences Chair and Associate Professor of Biology rsieg@truman.edu (660) 785-4605 Open Office Hours Via or in person (MG 3054) MWF 1:30-3, R 1-3 Other times by app't, send me an email! Personal Pronouns: he/him Administrative Assistant Mandi Wiser Administrative Assistant awiser@truman.edu (660) 785-4597 Personal Pronouns: She/Her Faculty Dr. Brett Berke Associate Professor of Biology (2015) bberke@truman.edu (660) 785-4609 Spring 2026 (Zoom and F2F; ) Mon 230-420 Wed 1030-1120 Thurs 1030-1 Fri 230-330 Appointments can also be scheduled upon request Personal Pronouns: he/him/his Dr. Sarah Berke Assistant Professor of Biology sberke@truman.edu (660) 785-7133 Monday 11:30 am - 12:20 pm Wednesday: 11:30 am - 12:30 pm and 2:30-2:30 pm Friday 11:30 am - 12:30 pm and 1:30 - 3:30 pm Or by appointment Personal Pronouns: she/her Ms. Emily Costello Lecturer in Agricultural Science, Equestrian Show Team Coach ecostello@truman.edu (660) 785-7204 Spring 2026 9:30am-12:00 pm M-R and10am-12pm F in MG 3078, other times by appointment, office hours can be in person or over zoom (ecostello2020) Personal Pronouns: She/Her Dr. Maria Beatriz De Souza Cortez Assistant Professor of Biology (2024) mbscortez@truman.edu (660) 785-4623 Monday: 8:30am - 10:00am Tuesday: 9:00am - 11:00am and 4:30pm - 5:30pm Wednesday: 1:30pm - 3:00pm Thursday: 11:30am - 1:30pm Friday: 8:30am - 10:30am For Office Hours by appointment, please email me at mbscortez@truman.edu Personal Pronouns: she, her, hers Dr. Joanna Hubbard Associate Professor of Biology jhubbard@truman.edu (660) 785-4071 Fall 2025 & Spring 2026: I am on sabbatical this year. If you need to contact me, please reach out via email. Personal Pronouns: she, her, hers Dr. Bob Johnson Assistant Professor of Agricultural Science bjohnson@truman.edu (660) 785-4281 MWF: 10:30 -12:20 and 1:30 - 2:20 Thursday: By appointment Personal Pronouns: he/him/his Josh Kraft Assistant Professor of Agricultural Science jkraft@truman.edu (660) 785-4593 Dr. John Ma Professor of Biology (2005) johnma@truman.edu (660) 785-4619 Fall 2025 Office hours: Tue/Wed 12:30 pm – 2:30 pm; Thu 12:30 pm – 1:30 pm No office hours during the final’s week. Dr. Stephanie Maiden Associate Professor smaiden@truman.edu (660) 785-4634 Spring 2026 WRF 9-11am (some Thursdays I have a meeting 9:30-10:20 am) Personal Pronouns: She/Her/Hers Dr. Hajeewaka Mendis Assistant Professor of Biology (2021) hmendis@truman.edu (660) 785-4630 Office hours: M - 2:30-3:30PM (By appointment only) T - 11:30AM-12:00PM W - 9:30AM-12:30PM, 1:30-3:00PM; R - 10:30AM-12:00PM, F - 9:30-11:00AM, 1:30-2:30PM (MG3030) Instr. Jeanne Mitchell Instructor in Biology (1992) jmitchel@truman.edu (660) 785-7662 Monday 11:30 - 12:20 and 1:30 to 2:20 Tuesday 9:00 - 11:00 Wednesday 8:30 - 10:20, 11:30 - 12:20, 1:30 - 2:20 Friday 11:30 - 12:20, 1:30 - 2:20 or by appointment. Zoom ID 614-047-3210 (zoom open by arrangement) Personal Pronouns: she/her Dr. Chad Montgomery Professor of Biology (2007) chadmont@truman.edu (660) 785-4587 M 8:30-11:30, 1:30-4:30; W 11:30-1:30; T Th 12:00-1:00 And by appointment Dr. Joyce Patrick Associate Professor of Biology (2015) jpatrick@truman.edu (660) 785-4601 My Office Hours for Spring 2026 are: Mondays 1:30-3:20 PM Tuesdays 9:30-10:20 AM and 12:30-1:20 PM Thursdays 9:30-10:20 AM Fridays 10:30 AM-12:20 PM Other hours available by appointment. Personal Pronouns: She/Her Dr. Anton Weisstein Professor of Biology (2004) weisstae@truman.edu (660) 785-4615 For Spring 2026: Tue: 10:30 a.m. – 12:30 p.m. Wed: 2:30 p.m. – 3:30 p.m. Thu: 10:30 a.m. – 12:30 p.m. Fri: 2:30 p.m. – 3:30 p.m. Appointments recommended, but drop-ins welcome. Personal Pronouns: he/him/his Farm Manager Justin Wiles Farm Manager jwiles@truman.edu (660) 785-7477 Laboratory Technician Albert Meyers Laboratory Technician ameyers@truman.edu (660) 785-4607 Liz O'Saurus Laboratory Technician losaurus@truman.edu (660) 785-7110 Misc. Bill Kuntz Farm Manager brkuntz@truman.edu