Selected repository locations for present-day orientation. Numbers match the research stops below. Select a marker to open its stop. Locations are approximate, not entrances or driving directions. Grouped numbers identify nearby repositories; use the address key for individual locations.
Several stops can lead to the same repository. Maps show selected verified locations, not every guide stop or every community represented in the records. Use each stop’s access instructions, including for online and out-of-county collections. Check access before traveling.
Stop 1, Stop 2: Central Upper Peninsula and Northern Michigan University Archives 228 Harden Hall, 1401 Presque Isle Avenue, Marquette, MI 49855 Not plotted.
Contact archives@nmu.edu with the record group, township and year before traveling to 228 Harden Hall, Marquette. Current construction can delay retrieval; ask staff to pull the required volumes in advance. Most holdings are physical, not digitized.
Stop 3: Archives of Michigan 702 W. Kalamazoo Street, Lansing, MI 48915 Not plotted.
Use the county guide and request the index or case reference from the Archives of Michigan before a Lansing visit. These records are not marked as deposited at NMU.
Stop 4: Delta County Historical Society Archives 16 Beaumier Way, Escanaba, MI 49829
The archives are at Sand Point in Escanaba, 16 Beaumier Way. Contact arch@deltahistorical.org or 906-789-6790 for a collection search and current visiting arrangements.
County outlines: U.S. Census Bureau 2024 cartographic boundaries ↗. Selected major roads: 2024 TIGER/Line primary and secondary roads ↗. Public repository addresses checked against the sources above, with approximate Census geocoder positions. Unmatched addresses and out-of-county repositories are listed in the key rather than assigned a guessed position. Markers identify contact locations, not collection coverage. Historical boundaries, township lines and current traffic conditions are not shown. Prepared November 1, 2026.
Collection and access sources reviewed 2026-11-01. These are selected research routes, not complete county holdings or completed name-level searches.
RESEARCH STOP 01
Sac Bay farm journal and township assessment rolls
Collection details
The Elliott farm journal documents Sac Bay Township in 1898–1903 (RG 74-125). Assessment rolls span 1881–1900 (RG 84-64); the separately listed Sac Bay series spans 1885–1904.
What to confirm
Published series spans do not establish a surviving roll for every township and year. Use the township name and record group to request the correct volume.
RESEARCH STOP 02
Poor-home residents and county relief accounts
Collection details
RG 82-117 includes the poor-home inhabitants register, 1903–1927; Superintendent of the Poor journals, 1885–1906; and ledgers, 1885–1914.
What to confirm
A relief entry is evidence of a particular interaction, not a census of all residents in hardship. Ask about restrictions and the condition of the requested volume.
RESEARCH STOP 03
Probate files with separate index and calendar dates
Collection details
RG 2019-118 has probate case files, 1887–1969; calendars, 1901–1969; and an index, 1882–1975. The index extends beyond the listed case files.
What to confirm
An index hit outside 1887–1969 does not establish that the corresponding file is in this accession. Confirm file survival and access with staff.
RESEARCH STOP 04
Community photographs, directories and railroad literature
Collection details
The society describes newspapers, city directories, school yearbooks, early-settlement and railroad literature, plus historical photographs. Its online catalog is selective and continues to grow.
What to confirm
Website HTTPS failed certificate verification during this check and the catalog could not be inspected live. No exact yearbook or directory run is claimed. Ask staff to confirm the relevant item and any reproduction fee.
Prepare one focused request
Give the repository the locality, year, collection and specific question. Ask about the relevant volume or folder, gaps, access restrictions and copying costs. Save the citation and record what you searched, including searches with no result.
Use these dated holdings to choose a next search. This is a selection of cataloged collections, not a complete inventory of Delta County records.
A range is a lead, not a guarantee. Bars show the dates stated by the cited catalog or inventory. They do not establish uninterrupted coverage, complete reporting or online image access. Unmarked years mean not represented in this selection, not that records were destroyed. Indexes and abstracts still need to be followed to the underlying record.
Sources reviewed November 1, 2026. Blue shows cataloged holdings; rust identifies indexes or compiled publications where the source specifies them. Read the format label and access notes for each row.
180018501900195020002026
Collection inventory or finding aid
Elliott farm journal, Sac Bay Township
Listed years: 1898–1903.
Source, access and coverage limits
Contact archives@nmu.edu with the record group, township and year before traveling to 228 Harden Hall, Marquette. Current construction can delay retrieval; ask staff to pull the required volumes in advance. Most holdings are physical, not digitized. Staff confirmed on November 2, 2026 that the collections floor remains under construction, with completion expected by February 2027. This is an estimate, not a guaranteed reopening date; confirm retrieval and reading-room access before travel.
Keep in mind: Published series spans do not establish a surviving roll for every township and year. Use the township name and record group to request the correct volume.
Contact archives@nmu.edu with the record group, township and year before traveling to 228 Harden Hall, Marquette. Current construction can delay retrieval; ask staff to pull the required volumes in advance. Most holdings are physical, not digitized. Staff confirmed on November 2, 2026 that the collections floor remains under construction, with completion expected by February 2027. This is an estimate, not a guaranteed reopening date; confirm retrieval and reading-room access before travel.
Keep in mind: Published series spans do not establish a surviving roll for every township and year. Use the township name and record group to request the correct volume.
Contact archives@nmu.edu with the record group, township and year before traveling to 228 Harden Hall, Marquette. Current construction can delay retrieval; ask staff to pull the required volumes in advance. Most holdings are physical, not digitized. Staff confirmed on November 2, 2026 that the collections floor remains under construction, with completion expected by February 2027. This is an estimate, not a guaranteed reopening date; confirm retrieval and reading-room access before travel.
Keep in mind: Published series spans do not establish a surviving roll for every township and year. Use the township name and record group to request the correct volume.
Contact archives@nmu.edu with the record group, township and year before traveling to 228 Harden Hall, Marquette. Current construction can delay retrieval; ask staff to pull the required volumes in advance. Most holdings are physical, not digitized. Staff confirmed on November 2, 2026 that the collections floor remains under construction, with completion expected by February 2027. This is an estimate, not a guaranteed reopening date; confirm retrieval and reading-room access before travel.
Keep in mind: A relief entry is evidence of a particular interaction, not a census of all residents in hardship. Ask about restrictions and the condition of the requested volume.
Contact archives@nmu.edu with the record group, township and year before traveling to 228 Harden Hall, Marquette. Current construction can delay retrieval; ask staff to pull the required volumes in advance. Most holdings are physical, not digitized. Staff confirmed on November 2, 2026 that the collections floor remains under construction, with completion expected by February 2027. This is an estimate, not a guaranteed reopening date; confirm retrieval and reading-room access before travel.
Keep in mind: A relief entry is evidence of a particular interaction, not a census of all residents in hardship. Ask about restrictions and the condition of the requested volume.
Use the county guide and request the index or case reference from the Archives of Michigan before a Lansing visit. These records are not marked as deposited at NMU.
Keep in mind: An index hit outside 1887–1969 does not establish that the corresponding file is in this accession. Confirm file survival and access with staff.
Confirm the historical jurisdiction as well as the date. A record may be held outside today’s county, and an inventory’s ending year does not mean recordkeeping stopped.
Suggest a correction, an overlooked collection or an updated access detail. An official link or source helps us check it before making a change. Please leave out private family documents and sensitive personal information.