| Sublib | Code | Display text | Comments |
| HOU | GEN | [no display text] | |
| HOU | B | b | boxed Boxed items/small broadsides |
| HOU | BLUE | BLUE STAR (Part of the Woodberry Poetry Room) | |
| HOU | BLUEF | BLUE STAR f (Part of the Woodberry Poetry Room) | |
| HOUHOU | BLUEPBLUEP | BLUE BLUE STAR p (Part of the Woodberry Poetry Room) | flat Flat files |
| HOUHOU | BLUEBBLUEB | BLUE BLUE STAR b (Part of the Woodberry Poetry Room) | Shelved Shelved with other Blue Star material |
| HOUHOU | FF | ff | Books Books more than 28 cm. |
| HOUHOU | GG | gg | ObseleteObsolete, do not use |
| HOUHOU | WIDWID | Harry Harry Elkins Widener Collection | |
| HOUHOU | WIDF | Harry Harry Elkins Widener Collection f | Books more than 28 cm. |
| HOUHOU | WIDPF | Harry Harry Elkins Widener Collection pf | Books more than 46 cm. |
| HOUHOU | HDBLU | Harvard Harvard Depository (Part of the Woodberry Poetry Room) | currently Currently not used |
| HOUHOU | HDHD | Harvard Harvard Depository | |
| HOUHOU | HOULCHOULC | HOUHOU-LC | |
| HOUHOU | HLCBHLCB | HOUHOU-LC b | boxed Boxed items/15 x 11 folder (Small small broadsides) |
| HOUHOU | HLCFHLCF | HOUHOU-LC f | Books Books more than 28 cm. |
| HOUHOU | HLCPFHLCPF | HOUHOU-LC pf | Books Books more than 46 cm. |
| HOUHOU | HLCPHLCP | HOUHOU-LC p | Large Large broadsides |
| HOUHOU | HLCPPHLCPP | HOUHOU-LC pp | Oversized Oversized broadsides |
| HOUHOU | HYDEHYDE | Hyde Hyde Collection | |
| HOUHOU | HYDBHYDB | Hyde Hyde Collection b | Boxed Boxed items/Small broadsides |
| HOUHOU | HYDFHYDF | Hyde Hyde Collection f | Books Books more than 28 cm. |
| HOUHOU | HYDPHYDP | Hyde Hyde Collection p | Large Large broadsides |
| HOUHOU | HYDPPHYDPP | Hyde Hyde Collection pp | Oversized Oversized broadsides |
| HOUHOU | HYDPFHYDPF | Hyde Hyde Collection pf | Books Books more than 46 cm. |
| HOUHOU | MM | mm | Miniature Miniature books (less than 10 cm.) |
| HOUHOU | MANUMANU | Manuscript Manuscript Department | MSMS-Ref books |
| HOUHOU | PP | pp | Large Large Typ broadsides; Houghton-classed books more than 46 cm |
| HOUHOU | PFPF | pfpf | Books Books more than 46 cm. |
| HOUHOU | PFBRPFBR | pf pf (br) | Large Large accession broadsides (obsolete?) |
| HOUHOU | PFHRZPFHRZ | pf pf (horz) | Large Large horizontal books |
| HOUHOU | PFCPFC | PF PF Cabinet | Flat Flat files |
| HOU HOU | PPPP | pppp | Oversized Oversized broadsides |
| HOUHOU | RRRR | Reading Reading Room | |
| HOUHOU | RRFRRF | Reading Reading Room f | Books Books more than 28 cm. (?) |
| HOU HOU | ROOSROOS | RooseveltRoosevelt | |
| HOU HOU | SOLIDSOLID | SOLIDAR SOLIDAR BIBL CTR | |
| HOU | TRCLCTRCLC | TRCTRC-LC | Roosevelt Roosevelt books, LC class |
| HOU HOU | TRLCFTRLCF | TRCTRC-LC f | Roosevelt Roosevelt books, LC class, more than 28 cm. |
| HOU HOU | TRCBTRCB | TRC TRC b | Roosevelt Roosevelt boxed collections |
| HOU HOU | TRCFTRCF | TRC TRC f | RooseveltRoosevelt, more than 28 cm (Roosevelt class) |
| HOU HOU | TRCPFTRCPF | TRC TRC pf | RooseveltRoosevelt, more than 46 cm (Roosevelt class) |
| HOU HOU | TRCTRC TRC | TRC | RooseveltRoosevelt |
| HOU HOU | TSTS | Technical Technical Services | MezzanineMezzanine; BAL; Manuscript section |
| HOU HOU | VAULTVAULT | VaultVault | |
| HOUHOU | WISDWISD | WisdomWisdom | |
| HOUHOU | WISDFWISDF | Wisdom Wisdom f | Thomas Thomas Woolf books more than 28 cm. |
| HOUHOU | WISDPWISDP | Wisdom Wisdom pf | Thomas Thomas Woolf books more than 46 cm. |
| HOUHOU | ZZ | ZZ-Closet | |