Every number never issued by the Astros or issued to one person

Per Baseball Almanac

This is part of an ongoing series that I am doing for every team. The original post with an explanation and a link to all of the posts that have been published can be found here.

00- John Mayberry (1968)
32- Jim Umbricht (1962-1963)
70- Andre Scrubb (2020-2021)
72- Humberto Castellanos (2020)
73- Gustavo Chacin (2010)
74- Never issued
75- Never issued
76- Never issued
78- Never issued
79- Never issued
80- Never issued
81- Never issued
82- Never issued
83- Jose Valdez (2010)
84- Never issued
85- Never issued
86- Never issued
87- Never issued
88- Phil Maton (2021-2022)
89- Never issued
90- Never issued
91- Never issued
92- Never issued
93- Yimi Garcia (2021)
94- Never issued
95- Never issued
96- Never issued
97- Never issued
98- Never issued

Retired numbers: 5, 7, 24, 25, 32, 33, 34, 40, 42, 49 (32 retired for Jim Umbricht, retired by the team shortly after his death in 1964)