Measures & Initiatives 1950 to 1959
| Election Date | Subject | |||
| 05/19/1950 | License Fees on Income and Business Profits Referendum by Petition | Yes No | 31,762 85,682 | |
| 05/19/1950 | Public Utilities Certificates Amend Charter Section 10-104 | Yes No | 54,611 56,930 | |
| 05/19/1950 | Municipal Auditorium Bonds - $150,000 Amend Charter (Insert Section 11-1003) | Yes No | 59,147 55,975 | |
| 05/19/1950 | Placing Municipal Auditorium Employees Under Civil Service Amend Charter Section 11-11001 | Yes No | 55,735 56,054 | |
| 05/19/1950 | 4/10 Mill Tax Levy for Parks Amend Charter (Insert Section 9-605) | Yes No | 61,008 56,136 | |
| 05/19/1950 | 5 Mill Tax Levy for Increased City Services Amend Charter (Insert Section 7-117) | Yes No | 28,575 86,901 | |
| 05/19/1950 | 2,000 Units Low-Rent Housing Ordinance Referred by Council | Yes No | 53,374 62,659 | |
| 11/07/1950 | Anti-Discrimination Ordinance Referendum by Petition | Yes No | 60,969 77,084 | |
| 11/07/1950 | Fire and Police Disability and Retirement Act Amend Charter Chapter 5 | Yes No | 68,904 58,832 | |
| 11/07/1950 | Fixing Salary of Mayor and Commissioner Amend Charter Section 2-114 | Yes No | 58,148 74,884 | |
| 06/19/1951 | 1 Mill Tax Levy for Civil Defense Amend Charter (Insert Section 7-117) | Yes No | 22,681 23,086 | |
| 06/19/1951 | Limiting Terms and Fixing Salaries of Mayor and Commissioners Amend Charter Section 2-114 | Yes No | 20,582 25,212 | |
| 05/16/1952 | Prohibit Punchboards in City; not submitted to electorate - Supreme Court upheld Emergency Clause - No Election Referendum by Petition | | | |
| 05/16/1952 | Promotion of Industry in City Amend Charter (Insert Section 2-137) | Yes No | 81,932 56,949 | |
| 05/16/1952 | Amendment Pertaining to Sale of Water Bonds Amend Charter Section 11-201 | Yes No | 88,697 40,964 | |
| 05/16/1952 | Fixing Salaries of City Officials Amend Charter Sections 2-117 & 2-114 | Yes No | 62,701 76,430 | |
| 05/16/1952 | Special Tax Levy for City Services and Expenses Amend Charter (Insert Section 7-117) | Yes No | 56,767 77,686 | |
| 05/16/1952 | Special Tax Levy for Symphony Bands Amend Charter (Insert Section 7-118) | Yes No | 55,616 80,502 | |
| 11/04/1952 | Dock Commission to Issue Revenue Certificates Amend Charter (Insert Section 6-106) | Yes No | 130,236 42,390 | |
| 11/04/1952 | Municipal Zoo Bonds $4,000,000 Amend Charter (Insert Section 11-504) | Yes No | 82,773 95,027 | |
| 11/04/1952 | Special Tax Levy - Civil Defense Amend Charter (Insert Section 7-117) | Yes No | 102,715 73,005 | |
| 11/04/1952 | Creating Transit and Parking Commission Amend Charter (Insert Chapter 14) | Yes No | 72,839 105,243 | |
| 11/04/1952 | Urban Redevelopment Bonds Amend Charter (Insert Chapter 15) | Yes No | 76,278 94,554 | |
| 11/04/1952 | Sewage Disposal Bonds $2,500,000 Amend Charter (Insert Section 11-1104 ½ ) | Yes No | 121,922 50,454 | |
| 11/04/1952 | Fixing Salaries of City Officials Amend Charter Section 2-114 | Yes No | 101,838 73,544 | |
| 11/04/1952 | Special Tax Levy - Salary Adjustments City Employees Amend Charter (Insert Section 7-118) | Yes No | 79,626 96,138 | |
| 05/21/1954 | Special 5-year Modern Zoo Levy Amend Charter (Insert Section 7-118) | Yes No | 65,885 47,000 | |
| 05/21/1954 | Bid Requirement for Purchases over $600 Amend Charter Section 8-106 | Yes No | 65,641 37,727 | |
| 05/21/1954 | Exposition-Recreation Center Bonds $8,000,000 Amend Charter (Insert Chapter 14) | Yes No | 60,885 48,628 | |
| 05/21/1954 | Harbor Facilities Bonds$6,500,000 Amend Charter (Insert Section 11-803) | Yes No | 82,630 28,053 | |
| 11/02/1954 | Authorizing 5-year Contracts by City Amend Charter Section 2-105 | Yes No | 84,439 48,236 | |
| 11/02/1954 | Succession on City Council in Emergency Amend Charter Section 2-116 | Yes No | 107,755 28,523 | |
| 11/02/1954 | Increasing Old Fire-Police Pensions Amend Charter Section 5-119 | Yes No | 106,137 39,019 | |
| 11/02/1954 | Municipal Officer-Employee Residence Requirement Amend Charter Section 2-505 | Yes No | 96,204 39,840 | |
| 11/02/54 | Establish New City Tax Base from $8,619,901.73 to $10,400,000 Amend Charter (Insert Section 7-120) | Yes No | 32,720 101,444 | |
| 11/02/1954 | Special 10-Year Capital Improvement Levy $2,000,000 per year Amend Charter (Insert Section 7-119) | Yes No | 44,218 87,776 | |
| 11/02/1954 | Transit Commission & 10 year Levy $65,000 p/year Amend Charter (Insert Chapter 15) | Yes No | 51,371 76,629 | |
| 11/02/1954 | Special Tax Levy for Street Lighting $1,000,000 per year for ten years Amend Charter (Insert Section 7-121) | Yes No | 92,702 53,871 | |
| 05/18/1956 | Special Rehabilitation Farm, Police Academy levy ½ Million for 1 year | Yes No | 32,437 95,493 | |
| 05/18/1956 | East Side Limitation, Exposition-Recreation Commission Amend Charter (Insert Section 14.108&14.109) Initiative Petition RECOUNT is official count Original Auditor Count: Yes 64,482 No 63,987 | Yes No | 64,363 64,060 | |
| 05/18/1956 | Prohibiting Pinballs, Certain Other Mechanical Games Ordinance Referred by Referendum Petition | Yes No | 76,770 59,258 | |
| 05/18/1956 | Special 5-yr Salary Adjustment Levy Amend Charter (Insert Section 7-124) | Yes No | 62,815 64,212 | |
| 11/06/1956 | Fluoridation of Water Supply Amend Charter (Insert Section 13-102) | Yes No | 75,621 105,519 | |
| 11/06/1956 | Parking Commission and Parking Facilities Amend Charter (Insert Chapter 15) | Yes No | 44,772 131,041 | |
| 11/06/1956 | Special Tax Levy for Trunk Sewers 1 ½ M for 5 yrs Amend Charter (Insert Section 7-119) | Yes No | 67,753 101,125 | |
| 11/06/1956 | East-West Facilities, Exposition-Recreation Center, Requiring $4,000,000 east side of River Amend Charter (Repeal Section 14-109, re-enact 14-01-14-07, amend 14-108) | Yes No | 25,092 148,156 | |
| 11/06/1956 | Special Tax Levy - City Services, Wages Amend Charter (Insert Section 7-120) | Yes No | 64,537 107,687 | |
| 11/06/1956 | Repeal Ban, Licensing Pinballs, Other Devices Ordinance Proposed by Initiative Petition | Yes No | 68,380 109,828 | |
| 11/06/1956 | Restoring Exposition-Recreation Commission Powers, Duties Amend Charter (Insert Section 14-110, repeal Section14-108 and 14-109) | Yes No | 80,370 87,131 | |
| 05/16/1958 | Fire Bureau Facilities and Equipment Bonds $3,000,000 Amend Charter (Insert Section 11-304) | Yes No | 65,843 45,331 | |
| 05/16/1958 | Creating Development and Civic Promotion Dept (Portland Development Commission) Amend Charter (Insert Chapter 15) | Yes No | 56,904 53,963 | |
| 05/16/1958 | Municipal Mass Transit Operation Amend Charter (Insert Chapter 16) | Yes No | 41,830 70,169 | |
| 05/16/1958 | Delta Park Location for E-R Center Amend Charter (Insert Section 14-110) Initiative Petition | Yes No | 46,838 73,049 | |
| 05/16/1958 | Council-Manager Form of City Government Amend Charter (Insert Section 1-101A) Initiative Petition | Yes No | 55,283 61,821 | |
| 05/16/1958 | Charter Revision Study Amend Charter (Insert Section 7-119) | Yes No | 31,068 70,081 | |
| 11/04/1958 | Discontinuing Posting of Pre-Election Notices Amend Charter Section 3-109 | Yes No | 86,774 48,024 | |
| 11/04/1958 | 10-yr Capital Improvement Program Amend Charter (Insert Section 7-201) | Yes No | 25,799 112,502 | |
| 11/04/1958 | Hydroelectric Power Facilities Bonds Amend Charter (Insert Section 11-203) | Yes No | 45,680 88,052 | |
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