Longest MLB losing streaks

Thanks to SABR member Frank Vaccaro for this list (EndDate is the date of the win that broke the streak):

Rank Streak Team League Season StartDate EndDate
1 31 BKN na 1875 5/29-10/9
2 26 LOU aa 1889 5/22-6/23
3 24 CLE n 1899 8/26-9/18
4 23 PIT n 1890 8/12-9/4
23 PHI n 1961 7/29-8/20

6 22 PHI aa 1890 9/16-10/12
7 21 BAL a 1988 4/4-4/29
8 20 LOU n 1894 5/28-6/19
20 BOS a 1906 5/1-5/25
20 PHI a 1916 7/21-8/9

20 PHI a 1943 8/7-8/24
20 MON n 1969 5/13-6/8
13 19 BOS n 1906 5/17-6/9
19 CIN n 1914 9/5-9/23
19 DET a 1975 7/29-8/16 (Frank's wife's birthday!)

19 KC a 2005 7/28-8/20
17 18 CIN n 1876 7/11-8/25
18 LOU n 1894 8/15-9/6
18 STL n 1897 9/3-9/27
18 PHI a 1920 6/8-6/28

18 WAS a 1948 9/3-9/19
18 WAS a 1959 7/19-8/5
23 17 WAS n 1894 5/3-5/29
17 BOS a 1926 8/20-9/8
17 NY n 1962 5/21-6/8

17 ATL n 1977 4/23-5/12
17 SEA a 2011 7/6-7/27